257152553 has 8 divisors (see below), whose sum is σ = 301831872. Its totient is φ = 214459056.

The previous prime is 257152537. The next prime is 257152559. The reversal of 257152553 is 355251752.

It is a happy number.

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

It is not a de Polignac number, because 257152553 - 2⁴ = 257152537 is a prime.

It is a super-2 number, since 2×257152553² = 132254871028835618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257152559) 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, 496175 + ... + 496692.

It is an arithmetic number, because the mean of its divisors is an integer number (37728984).

Almost surely, 2^257152553 is an apocalyptic number.

It is an amenable number.

257152553 is a deficient number, since it is larger than the sum of its proper divisors (44679319).

257152553 is an equidigital number, since it uses as much as digits as its factorization.

257152553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992911.

The product of its digits is 52500, while the sum is 35.

The square root of 257152553 is about 16035.9768333582. The cubic root of 257152553 is about 635.9118921562.

The spelling of 257152553 in words is "two hundred fifty-seven million, one hundred fifty-two thousand, five hundred fifty-three".