257124953 has 4 divisors (see below), whose sum is σ = 260222928. Its totient is φ = 254026980.

The previous prime is 257124941. The next prime is 257124997. The reversal of 257124953 is 359421752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257124953 is a prime.

It is a super-2 number, since 2×257124953² = 132226482910504418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257124053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548863 + ... + 1549028.

It is an arithmetic number, because the mean of its divisors is an integer number (65055732).

Almost surely, 2^257124953 is an apocalyptic number.

It is an amenable number.

257124953 is a deficient number, since it is larger than the sum of its proper divisors (3097975).

257124953 is an equidigital number, since it uses as much as digits as its factorization.

257124953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097974.

The product of its digits is 75600, while the sum is 38.

The square root of 257124953 is about 16035.1162452911. The cubic root of 257124953 is about 635.8891406857.

The spelling of 257124953 in words is "two hundred fifty-seven million, one hundred twenty-four thousand, nine hundred fifty-three".