257532530055 has 16 divisors (see below), whose sum is σ = 418807001184. Its totient is φ = 135099031680.

The previous prime is 257532530033. The next prime is 257532530081. The reversal of 257532530055 is 550035235752.

It is not a de Polignac number, because 257532530055 - 2⁵ = 257532530023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257532529989 and 257532530016.

It is a congruent number.

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, 140727244 + ... + 140729073.

It is an arithmetic number, because the mean of its divisors is an integer number (26175437574).

Almost surely, 2^257532530055 is an apocalyptic number.

257532530055 is a deficient number, since it is larger than the sum of its proper divisors (161274471129).

257532530055 is a wasteful number, since it uses less digits than its factorization.

257532530055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281456386.

The product of its (nonzero) digits is 787500, while the sum is 42.

The spelling of 257532530055 in words is "two hundred fifty-seven billion, five hundred thirty-two million, five hundred thirty thousand, fifty-five".