255607407464 has 32 divisors (see below), whose sum is σ = 486089198280. Its totient is φ = 125993877504.

The previous prime is 255607407403. The next prime is 255607407499. The reversal of 255607407464 is 464704706552.

It can be written as a sum of positive squares in 4 ways, for example, as 252263098564 + 3344308900 = 502258^2 + 57830^2 .

It is a super-2 number, since 2×255607407464² (a number of 24 digits) contains 22 as substring.

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, 441407 + ... + 840270.

Almost surely, 2^255607407464 is an apocalyptic number.

It is an amenable number.

255607407464 is a deficient number, since it is larger than the sum of its proper divisors (230481790816).

255607407464 is a wasteful number, since it uses less digits than its factorization.

255607407464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282037 (or 1282033 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 255607407464 in words is "two hundred fifty-five billion, six hundred seven million, four hundred seven thousand, four hundred sixty-four".