51004736552 has 64 divisors (see below), whose sum is σ = 122004748800. Its totient is φ = 19409826240.

The previous prime is 51004736537. The next prime is 51004736569. The reversal of 51004736552 is 25563740015.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936302 + ... + 989277.

It is an arithmetic number, because the mean of its divisors is an integer number (1906324200).

Almost surely, 2^51004736552 is an apocalyptic number.

It is an amenable number.

51004736552 is an abundant number, since it is smaller than the sum of its proper divisors (71000012248).

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

51004736552 is a wasteful number, since it uses less digits than its factorization.

51004736552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925646 (or 1925642 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 51004736552 in words is "fifty-one billion, four million, seven hundred thirty-six thousand, five hundred fifty-two".