257472401 has 8 divisors (see below), whose sum is σ = 275618400. Its totient is φ = 239785920.

The previous prime is 257472389. The next prime is 257472407. The reversal of 257472401 is 104274752.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257472401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257472407) 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, 113720 + ... + 115961.

It is an arithmetic number, because the mean of its divisors is an integer number (34452300).

Almost surely, 2^257472401 is an apocalyptic number.

It is an amenable number.

257472401 is a deficient number, since it is larger than the sum of its proper divisors (18145999).

257472401 is a wasteful number, since it uses less digits than its factorization.

257472401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229759.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 257472401 is about 16045.9465598013. The cubic root of 257472401 is about 636.1754333560.

The spelling of 257472401 in words is "two hundred fifty-seven million, four hundred seventy-two thousand, four hundred one".