51755517574632 has 96 divisors (see below), whose sum is σ = 141431713113600. Its totient is φ = 17096741641728.

The previous prime is 51755517574561. The next prime is 51755517574633. The reversal of 51755517574632 is 23647571555715.

51755517574632 is a `hidden beast` number, since 5 + 1 + 7 + 5 + 5 + 51 + 7 + 574 + 6 + 3 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51755517574632.

It is not an unprimeable number, because it can be changed into a prime (51755517574633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57342219 + ... + 58237797.

It is an arithmetic number, because the mean of its divisors is an integer number (1473247011600).

Almost surely, 2^{51755517574632} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51755517574632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70715856556800).

51755517574632 is an abundant number, since it is smaller than the sum of its proper divisors (89676195538968).

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

51755517574632 is a wasteful number, since it uses less digits than its factorization.

51755517574632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902807 (or 902800 counting only the distinct ones).

The product of its digits is 154350000, while the sum is 63.

The spelling of 51755517574632 in words is "fifty-one trillion, seven hundred fifty-five billion, five hundred seventeen million, five hundred seventy-four thousand, six hundred thirty-two".