57260660 has 24 divisors (see below), whose sum is σ = 120453480. Its totient is φ = 22865024.

The previous prime is 57260659. The next prime is 57260677. The reversal of 57260660 is 6606275.

It can be written as a sum of positive squares in 4 ways, for example, as 42484324 + 14776336 = 6518^2 + 3844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11426 + ... + 15654.

It is an arithmetic number, because the mean of its divisors is an integer number (5018895).

Almost surely, 2^57260660 is an apocalyptic number.

It is an amenable number.

57260660 is an abundant number, since it is smaller than the sum of its proper divisors (63192820).

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

57260660 is a wasteful number, since it uses less digits than its factorization.

57260660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915 (or 4913 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 57260660 is about 7567.0773750504. The cubic root of 57260660 is about 385.4358587700.

The spelling of 57260660 in words is "fifty-seven million, two hundred sixty thousand, six hundred sixty".