51662444502 has 32 divisors (see below), whose sum is σ = 106145030880. Its totient is φ = 16753172480.

The previous prime is 51662444501. The next prime is 51662444521. The reversal of 51662444502 is 20544426615.

51662444502 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 not an unprimeable number, because it can be changed into a prime (51662444501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210627 + ... + 384302.

It is an arithmetic number, because the mean of its divisors is an integer number (3317032215).

Almost surely, 2^51662444502 is an apocalyptic number.

51662444502 is an abundant number, since it is smaller than the sum of its proper divisors (54482586378).

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

51662444502 is a wasteful number, since it uses less digits than its factorization.

51662444502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595328.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 51662444502 in words is "fifty-one billion, six hundred sixty-two million, four hundred forty-four thousand, five hundred two".