51208254063936 has 140 divisors (see below), whose sum is σ = 152019568464192. Its totient is φ = 17044425015552.

The previous prime is 51208254063893. The next prime is 51208254064027. The reversal of 51208254063936 is 63936045280215.

It is a happy number.

51208254063936 is a `hidden beast` number, since 5 + 1 + 2 + 0 + 8 + 2 + 540 + 6 + 3 + 93 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3690760 + ... + 10772103.

Almost surely, 2^{51208254063936} is an apocalyptic number.

It is an amenable number.

51208254063936 is an abundant number, since it is smaller than the sum of its proper divisors (100811314400256).

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

51208254063936 is a wasteful number, since it uses less digits than its factorization.

51208254063936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14463570 (or 14463551 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 51208254063936 in words is "fifty-one trillion, two hundred eight billion, two hundred fifty-four million, sixty-three thousand, nine hundred thirty-six".