257072451 has 16 divisors (see below), whose sum is σ = 361718400. Its totient is φ = 161949888.

The previous prime is 257072441. The next prime is 257072477. The reversal of 257072451 is 154270752.

It is not a de Polignac number, because 257072451 - 2⁹ = 257071939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257072441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17800 + ... + 28826.

It is an arithmetic number, because the mean of its divisors is an integer number (22607400).

Almost surely, 2^257072451 is an apocalyptic number.

257072451 is a deficient number, since it is larger than the sum of its proper divisors (104645949).

257072451 is a wasteful number, since it uses less digits than its factorization.

257072451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 257072451 is about 16033.4790672517. The cubic root of 257072451 is about 635.8458572888.

The spelling of 257072451 in words is "two hundred fifty-seven million, seventy-two thousand, four hundred fifty-one".