257680850 has 48 divisors (see below), whose sum is σ = 576600000. Its totient is φ = 83695680.

The previous prime is 257680847. The next prime is 257680873. The reversal of 257680850 is 58086752.

It is a junction number, because it is equal to n+sod(n) for n = 257680798 and 257680807.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12725 + ... + 26024.

It is an arithmetic number, because the mean of its divisors is an integer number (12012500).

Almost surely, 2^257680850 is an apocalyptic number.

257680850 is an abundant number, since it is smaller than the sum of its proper divisors (318919150).

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

257680850 is a wasteful number, since it uses less digits than its factorization.

257680850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38787 (or 38782 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 257680850 is about 16052.4406244035. The cubic root of 257680850 is about 636.3470690492.

The spelling of 257680850 in words is "two hundred fifty-seven million, six hundred eighty thousand, eight hundred fifty".