49529979 has 24 divisors (see below), whose sum is σ = 76040640. Its totient is φ = 30978288.

The previous prime is 49529947. The next prime is 49529981. The reversal of 49529979 is 97992594.

49529979 is a `hidden beast` number, since 49 + 529 + 9 + 79 = 666.

It is not a de Polignac number, because 49529979 - 2⁵ = 49529947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49527979) 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, 16944 + ... + 19650.

It is an arithmetic number, because the mean of its divisors is an integer number (3168360).

Almost surely, 2^49529979 is an apocalyptic number.

49529979 is a deficient number, since it is larger than the sum of its proper divisors (26510661).

49529979 is a wasteful number, since it uses less digits than its factorization.

49529979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839 (or 2836 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 49529979 is about 7037.7538320120. The cubic root of 49529979 is about 367.2451321845.

The spelling of 49529979 in words is "forty-nine million, five hundred twenty-nine thousand, nine hundred seventy-nine".