257100070 has 16 divisors (see below), whose sum is σ = 466426368. Its totient is φ = 102029760.

The previous prime is 257100047. The next prime is 257100071. The reversal of 257100070 is 70001752.

It is a super-2 number, since 2×257100070² = 132200891988009800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257100071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99951 + ... + 102490.

It is an arithmetic number, because the mean of its divisors is an integer number (29151648).

Almost surely, 2^257100070 is an apocalyptic number.

257100070 is a deficient number, since it is larger than the sum of its proper divisors (209326298).

257100070 is a wasteful number, since it uses less digits than its factorization.

257100070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202575.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 257100070 is about 16034.3403356671. The cubic root of 257100070 is about 635.8686275205.

The spelling of 257100070 in words is "two hundred fifty-seven million, one hundred thousand, seventy".