57490521 has 16 divisors (see below), whose sum is σ = 83773440. Its totient is φ = 34779920.

The previous prime is 57490469. The next prime is 57490553. The reversal of 57490521 is 12509475.

It is a cyclic number.

It is not a de Polignac number, because 57490521 - 2⁶ = 57490457 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57490021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22516 + ... + 24938.

It is an arithmetic number, because the mean of its divisors is an integer number (5235840).

Almost surely, 2^57490521 is an apocalyptic number.

It is an amenable number.

57490521 is a deficient number, since it is larger than the sum of its proper divisors (26282919).

57490521 is a wasteful number, since it uses less digits than its factorization.

57490521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 57490521 is about 7582.2503915394. The cubic root of 57490521 is about 385.9509208542.

Adding to 57490521 its reverse (12509475), we get a palindrome (69999996).

The spelling of 57490521 in words is "fifty-seven million, four hundred ninety thousand, five hundred twenty-one".