257056117231450 has 24 divisors (see below), whose sum is σ = 478128833117568. Its totient is φ = 102821488813680.

The previous prime is 257056117231421. The next prime is 257056117231451. The reversal of 257056117231450 is 54132711650752.

257056117231450 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 2×257056117231450² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257056117231394 and 257056117231403.

It is not an unprimeable number, because it can be changed into a prime (257056117231451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18520042 + ... + 29276341.

It is an arithmetic number, because the mean of its divisors is an integer number (19922034713232).

Almost surely, 2^{257056117231450} is an apocalyptic number.

257056117231450 is a deficient number, since it is larger than the sum of its proper divisors (221072715886118).

257056117231450 is a wasteful number, since it uses less digits than its factorization.

257056117231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47903958 (or 47903953 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 257056117231450 in words is "two hundred fifty-seven trillion, fifty-six billion, one hundred seventeen million, two hundred thirty-one thousand, four hundred fifty".