49921560 has 96 divisors (see below), whose sum is σ = 174741840. Its totient is φ = 12287232.

The previous prime is 49921519. The next prime is 49921583. The reversal of 49921560 is 6512994.

49921560 is a `hidden beast` number, since 4 + 9 + 92 + 1 + 560 = 666.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654 + ... + 10013.

Almost surely, 2^49921560 is an apocalyptic number.

49921560 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 49921560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87370920).

49921560 is an abundant number, since it is smaller than the sum of its proper divisors (124820280).

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

49921560 is a wasteful number, since it uses less digits than its factorization.

49921560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697 (or 10690 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 49921560 is about 7065.5190892106. The cubic root of 49921560 is about 368.2103987457.

The spelling of 49921560 in words is "forty-nine million, nine hundred twenty-one thousand, five hundred sixty".