255512112642 has 24 divisors (see below), whose sum is σ = 553815714816. Its totient is φ = 85138990776.

The previous prime is 255512112637. The next prime is 255512112643. The reversal of 255512112642 is 246211215552.

255512112642 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 1 + 2 + 1 + 1 + 2 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 255512112597 and 255512112606.

It is not an unprimeable number, because it can be changed into a prime (255512112643) 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, 2593078 + ... + 2689809.

It is an arithmetic number, because the mean of its divisors is an integer number (23075654784).

Almost surely, 2^255512112642 is an apocalyptic number.

255512112642 is an abundant number, since it is smaller than the sum of its proper divisors (298303602174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255512112642 is a wasteful number, since it uses less digits than its factorization.

255512112642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285582 (or 5285579 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The spelling of 255512112642 in words is "two hundred fifty-five billion, five hundred twelve million, one hundred twelve thousand, six hundred forty-two".