257252770 has 16 divisors (see below), whose sum is σ = 464781240. Its totient is φ = 102517504.

The previous prime is 257252759. The next prime is 257252771. The reversal of 257252770 is 77252752.

It can be written as a sum of positive squares in 4 ways, for example, as 93489561 + 163763209 = 9669^2 + 12797^2 .

It is not an unprimeable number, because it can be changed into a prime (257252771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45127 + ... + 50506.

Almost surely, 2^257252770 is an apocalyptic number.

257252770 is a deficient number, since it is larger than the sum of its proper divisors (207528470).

257252770 is a wasteful number, since it uses less digits than its factorization.

257252770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95909.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 257252770 is about 16039.1012840496. The cubic root of 257252770 is about 635.9944902150.

The spelling of 257252770 in words is "two hundred fifty-seven million, two hundred fifty-two thousand, seven hundred seventy".