57490998 has 16 divisors (see below), whose sum is σ = 121033920. Its totient is φ = 18155016.

The previous prime is 57490997. The next prime is 57490999. The reversal of 57490998 is 89909475.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57490997) and next prime (57490999).

It is a self number, because there is not a number n which added to its sum of digits gives 57490998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57490997) 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, 252040 + ... + 252267.

It is an arithmetic number, because the mean of its divisors is an integer number (7564620).

Almost surely, 2^57490998 is an apocalyptic number.

57490998 is an abundant number, since it is smaller than the sum of its proper divisors (63542922).

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

57490998 is a wasteful number, since it uses less digits than its factorization.

57490998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504331.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 57490998 is about 7582.2818465156. The cubic root of 57490998 is about 385.9519882654.

The spelling of 57490998 in words is "fifty-seven million, four hundred ninety thousand, nine hundred ninety-eight".