257125466 has 32 divisors (see below), whose sum is σ = 429578688. Its totient is φ = 114670080.

The previous prime is 257125447. The next prime is 257125471. The reversal of 257125466 is 664521752.

It is a super-2 number, since 2×257125466² = 132227010531434312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107261 + ... + 109631.

It is an arithmetic number, because the mean of its divisors is an integer number (13424334).

Almost surely, 2^257125466 is an apocalyptic number.

257125466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

257125466 is a deficient number, since it is larger than the sum of its proper divisors (172453222).

257125466 is a wasteful number, since it uses less digits than its factorization.

257125466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526.

The product of its digits is 100800, while the sum is 38.

The square root of 257125466 is about 16035.1322414254. The cubic root of 257125466 is about 635.8895635812.

The spelling of 257125466 in words is "two hundred fifty-seven million, one hundred twenty-five thousand, four hundred sixty-six".