51553464255524 has 24 divisors (see below), whose sum is σ = 112480285649088. Its totient is φ = 20085765294240.

The previous prime is 51553464255523. The next prime is 51553464255533. The reversal of 51553464255524 is 42555246435515.

It is a self number, because there is not a number n which added to its sum of digits gives 51553464255524.

It is not an unprimeable number, because it can be changed into a prime (51553464255523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83690688419 + ... + 83690689034.

It is an arithmetic number, because the mean of its divisors is an integer number (4686678568712).

Almost surely, 2^{51553464255524} is an apocalyptic number.

It is an amenable number.

51553464255524 is an abundant number, since it is smaller than the sum of its proper divisors (60926821393564).

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

51553464255524 is a wasteful number, since it uses less digits than its factorization.

51553464255524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167381377475 (or 167381377473 counting only the distinct ones).

The product of its digits is 72000000, while the sum is 56.

The spelling of 51553464255524 in words is "fifty-one trillion, five hundred fifty-three billion, four hundred sixty-four million, two hundred fifty-five thousand, five hundred twenty-four".