49565520 has 100 divisors (see below), whose sum is σ = 172170900. Its totient is φ = 13215744.

The previous prime is 49565507. The next prime is 49565531. The reversal of 49565520 is 2556594.

49565520 is a `hidden beast` number, since 49 + 565 + 52 + 0 = 666.

49565520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 41062464 = 2916^2 + 6408^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2656 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (1721709).

Almost surely, 2^49565520 is an apocalyptic number.

49565520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49565520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86085450).

49565520 is an abundant number, since it is smaller than the sum of its proper divisors (122605380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49565520 is a wasteful number, since it uses less digits than its factorization.

49565520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674 (or 7659 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 49565520 is about 7040.2784035860. The cubic root of 49565520 is about 367.3329519845.

The spelling of 49565520 in words is "forty-nine million, five hundred sixty-five thousand, five hundred twenty".