255211287896 has 32 divisors (see below), whose sum is σ = 499397184000. Its totient is φ = 122040277920.

The previous prime is 255211287889. The next prime is 255211287913. The reversal of 255211287896 is 698782112552.

It is a super-2 number, since 2×255211287896² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 1254305 + ... + 1443503.

It is an arithmetic number, because the mean of its divisors is an integer number (15606162000).

Almost surely, 2^255211287896 is an apocalyptic number.

It is an amenable number.

255211287896 is a deficient number, since it is larger than the sum of its proper divisors (244185896104).

255211287896 is a wasteful number, since it uses less digits than its factorization.

255211287896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196559 (or 196555 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 56.

The spelling of 255211287896 in words is "two hundred fifty-five billion, two hundred eleven million, two hundred eighty-seven thousand, eight hundred ninety-six".