257530625353 has 8 divisors (see below), whose sum is σ = 269279422848. Its totient is φ = 245827812384.

The previous prime is 257530625293. The next prime is 257530625357. The reversal of 257530625353 is 353526035752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 257530625353 - 2¹⁷ = 257530494281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257530625357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11484676 + ... + 11507077.

It is an arithmetic number, because the mean of its divisors is an integer number (33659927856).

Almost surely, 2^257530625353 is an apocalyptic number.

257530625353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

257530625353 is a deficient number, since it is larger than the sum of its proper divisors (11748797495).

257530625353 is a wasteful number, since it uses less digits than its factorization.

257530625353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22992263.

The product of its (nonzero) digits is 2835000, while the sum is 46.

The spelling of 257530625353 in words is "two hundred fifty-seven billion, five hundred thirty million, six hundred twenty-five thousand, three hundred fifty-three".