49565538 has 48 divisors (see below), whose sum is σ = 117913536. Its totient is φ = 14922720.

The previous prime is 49565531. The next prime is 49565543. The reversal of 49565538 is 83556594.

49565538 is a `hidden beast` number, since 4 + 95 + 6 + 553 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 49565493 and 49565502.

It is not an unprimeable number, because it can be changed into a prime (49565531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33531 + ... + 34977.

It is an arithmetic number, because the mean of its divisors is an integer number (2456532).

Almost surely, 2^49565538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49565538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58956768).

49565538 is an abundant number, since it is smaller than the sum of its proper divisors (68347998).

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

49565538 is a wasteful number, since it uses less digits than its factorization.

49565538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1636 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 49565538 is about 7040.2796819445. The cubic root of 49565538 is about 367.3329964508.

The spelling of 49565538 in words is "forty-nine million, five hundred sixty-five thousand, five hundred thirty-eight".