57499698 has 16 divisors (see below), whose sum is σ = 116885376. Its totient is φ = 18852240.

The previous prime is 57499697. The next prime is 57499703. The reversal of 57499698 is 89699475.

It is not an unprimeable number, because it can be changed into a prime (57499693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78186 + ... + 78917.

It is an arithmetic number, because the mean of its divisors is an integer number (7305336).

Almost surely, 2^57499698 is an apocalyptic number.

57499698 is an abundant number, since it is smaller than the sum of its proper divisors (59385678).

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

57499698 is a wasteful number, since it uses less digits than its factorization.

57499698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157169.

The product of its digits is 4898880, while the sum is 57.

The square root of 57499698 is about 7582.8555307351. The cubic root of 57499698 is about 385.9714557360.

The spelling of 57499698 in words is "fifty-seven million, four hundred ninety-nine thousand, six hundred ninety-eight".