51006544602 has 128 divisors (see below), whose sum is σ = 113728043520. Its totient is φ = 15153315840.

The previous prime is 51006544591. The next prime is 51006544703. The reversal of 51006544602 is 20644560015.

51006544602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 124710174 + ... + 124710582.

It is an arithmetic number, because the mean of its divisors is an integer number (888500340).

Almost surely, 2^51006544602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51006544602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56864021760).

51006544602 is an abundant number, since it is smaller than the sum of its proper divisors (62721498918).

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

51006544602 is a wasteful number, since it uses less digits than its factorization.

51006544602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 51006544602 in words is "fifty-one billion, six million, five hundred forty-four thousand, six hundred two".