257080616 has 32 divisors (see below), whose sum is σ = 520017960. Its totient is φ = 118444032.

The previous prime is 257080609. The next prime is 257080673. The reversal of 257080616 is 616080752.

It can be written as a sum of positive squares in 4 ways, for example, as 89378116 + 167702500 = 9454^2 + 12950^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68156 + ... + 71828.

Almost surely, 2^257080616 is an apocalyptic number.

257080616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

257080616 is an abundant number, since it is smaller than the sum of its proper divisors (262937344).

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

257080616 is a wasteful number, since it uses less digits than its factorization.

257080616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 257080616 is about 16033.7336886952. The cubic root of 257080616 is about 635.8525890181.

The spelling of 257080616 in words is "two hundred fifty-seven million, eighty thousand, six hundred sixteen".