57321297240 has 64 divisors (see below), whose sum is σ = 173102780160. Its totient is φ = 15184444800.

The previous prime is 57321297233. The next prime is 57321297281. The reversal of 57321297240 is 4279212375.

57321297240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57321297240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57321297192 and 57321297201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1563594 + ... + 1599833.

It is an arithmetic number, because the mean of its divisors is an integer number (2704730940).

Almost surely, 2^57321297240 is an apocalyptic number.

It is an amenable number.

57321297240 is an abundant number, since it is smaller than the sum of its proper divisors (115781482920).

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

57321297240 is a wasteful number, since it uses less digits than its factorization.

57321297240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163592 (or 3163588 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 57321297240 in words is "fifty-seven billion, three hundred twenty-one million, two hundred ninety-seven thousand, two hundred forty".