256852719 has 12 divisors (see below), whose sum is σ = 371163936. Its totient is φ = 171163872.

The previous prime is 256852693. The next prime is 256852721. The reversal of 256852719 is 917258652.

It is not a de Polignac number, because 256852719 - 2⁹ = 256852207 is a prime.

It is a super-2 number, since 2×256852719² = 131946638515385922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256852759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25819 + ... + 34355.

It is an arithmetic number, because the mean of its divisors is an integer number (30930328).

Almost surely, 2^256852719 is an apocalyptic number.

256852719 is a deficient number, since it is larger than the sum of its proper divisors (114311217).

256852719 is a wasteful number, since it uses less digits than its factorization.

256852719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11886 (or 11883 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 256852719 is about 16026.6253153931. The cubic root of 256852719 is about 635.6646431246.

The spelling of 256852719 in words is "two hundred fifty-six million, eight hundred fifty-two thousand, seven hundred nineteen".