57245717256 has 192 divisors, whose sum is σ = 179583324480. Its totient is φ = 15072744960.

The previous prime is 57245717237. The next prime is 57245717273. The reversal of 57245717256 is 65271754275.

It is a junction number, because it is equal to n+sod(n) for n = 57245717199 and 57245717208.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10347211 + ... + 10352741.

It is an arithmetic number, because the mean of its divisors is an integer number (935329815).

Almost surely, 2^57245717256 is an apocalyptic number.

57245717256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57245717256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89791662240).

57245717256 is an abundant number, since it is smaller than the sum of its proper divisors (122337607224).

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

57245717256 is a wasteful number, since it uses less digits than its factorization.

57245717256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244 (or 6233 counting only the distinct ones).

The product of its digits is 4116000, while the sum is 51.

The spelling of 57245717256 in words is "fifty-seven billion, two hundred forty-five million, seven hundred seventeen thousand, two hundred fifty-six".