257550550755 has 16 divisors (see below), whose sum is σ = 433769349120. Its totient is φ = 130130804448.

The previous prime is 257550550729. The next prime is 257550550769. The reversal of 257550550755 is 557055055752.

It is not a de Polignac number, because 257550550755 - 2⁵ = 257550550723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257550550698 and 257550550707.

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, 451842787 + ... + 451843356.

It is an arithmetic number, because the mean of its divisors is an integer number (27110584320).

Almost surely, 2^257550550755 is an apocalyptic number.

257550550755 is a deficient number, since it is larger than the sum of its proper divisors (176218798365).

257550550755 is a wasteful number, since it uses less digits than its factorization.

257550550755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903686170.

The product of its (nonzero) digits is 7656250, while the sum is 51.

The spelling of 257550550755 in words is "two hundred fifty-seven billion, five hundred fifty million, five hundred fifty thousand, seven hundred fifty-five".