257214650 has 48 divisors (see below), whose sum is σ = 596479680. Its totient is φ = 80169600.

The previous prime is 257214637. The next prime is 257214653. The reversal of 257214650 is 56412752.

It is not an unprimeable number, because it can be changed into a prime (257214653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29555 + ... + 37254.

It is an arithmetic number, because the mean of its divisors is an integer number (12426660).

Almost surely, 2^257214650 is an apocalyptic number.

257214650 is an abundant number, since it is smaller than the sum of its proper divisors (339265030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257214650 is a wasteful number, since it uses less digits than its factorization.

257214650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66839 (or 66834 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 257214650 is about 16037.9128941393. The cubic root of 257214650 is about 635.9630745409.

The spelling of 257214650 in words is "two hundred fifty-seven million, two hundred fourteen thousand, six hundred fifty".