257807514054 has 64 divisors (see below), whose sum is σ = 528521241600. Its totient is φ = 83805321600.

The previous prime is 257807514047. The next prime is 257807514137. The reversal of 257807514054 is 450415708752.

It is a junction number, because it is equal to n+sod(n) for n = 257807513994 and 257807514012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101060079 + ... + 101062629.

It is an arithmetic number, because the mean of its divisors is an integer number (8258144400).

Almost surely, 2^257807514054 is an apocalyptic number.

257807514054 is an abundant number, since it is smaller than the sum of its proper divisors (270713727546).

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

257807514054 is a wasteful number, since it uses less digits than its factorization.

257807514054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 1568000, while the sum is 48.

The spelling of 257807514054 in words is "two hundred fifty-seven billion, eight hundred seven million, five hundred fourteen thousand, fifty-four".