51338652252 has 24 divisors (see below), whose sum is σ = 119902909056. Its totient is φ = 17096781168.

The previous prime is 51338652163. The next prime is 51338652271. The reversal of 51338652252 is 25225683315.

51338652252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1999578 + ... + 2025089.

It is an arithmetic number, because the mean of its divisors is an integer number (4995954544).

Almost surely, 2^51338652252 is an apocalyptic number.

It is an amenable number.

51338652252 is an abundant number, since it is smaller than the sum of its proper divisors (68564256804).

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

51338652252 is a wasteful number, since it uses less digits than its factorization.

51338652252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025737 (or 4025735 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 51338652252 in words is "fifty-one billion, three hundred thirty-eight million, six hundred fifty-two thousand, two hundred fifty-two".