257603055 has 32 divisors (see below), whose sum is σ = 422594496. Its totient is φ = 133945344.

The previous prime is 257603051. The next prime is 257603063. The reversal of 257603055 is 550306752.

It is not a de Polignac number, because 257603055 - 2² = 257603051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257603051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136599 + ... + 138471.

It is an arithmetic number, because the mean of its divisors is an integer number (13206078).

Almost surely, 2^257603055 is an apocalyptic number.

257603055 is a deficient number, since it is larger than the sum of its proper divisors (164991441).

257603055 is a wasteful number, since it uses less digits than its factorization.

257603055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 257603055 is about 16050.0172897103. The cubic root of 257603055 is about 636.2830239291.

The spelling of 257603055 in words is "two hundred fifty-seven million, six hundred three thousand, fifty-five".