257072650 has 12 divisors (see below), whose sum is σ = 478155222. Its totient is φ = 102829040.

The previous prime is 257072609. The next prime is 257072681. The reversal of 257072650 is 56270752.

It is a happy number.

257072650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 219899241 + 37173409 = 14829^2 + 6097^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2570677 + ... + 2570776.

Almost surely, 2^257072650 is an apocalyptic number.

257072650 is a deficient number, since it is larger than the sum of its proper divisors (221082572).

257072650 is a wasteful number, since it uses less digits than its factorization.

257072650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141465 (or 5141460 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 257072650 is about 16033.4852730153. The cubic root of 257072650 is about 635.8460213583.

The spelling of 257072650 in words is "two hundred fifty-seven million, seventy-two thousand, six hundred fifty".