51545525502 has 16 divisors (see below), whose sum is σ = 103106038032. Its totient is φ = 17179344000.

The previous prime is 51545525443. The next prime is 51545525503. The reversal of 51545525502 is 20552554515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51545525503) 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, 579499 + ... + 662502.

It is an arithmetic number, because the mean of its divisors is an integer number (6444127377).

Almost surely, 2^51545525502 is an apocalyptic number.

51545525502 is an abundant number, since it is smaller than the sum of its proper divisors (51560512530).

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

51545525502 is a wasteful number, since it uses less digits than its factorization.

51545525502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248923.

The product of its (nonzero) digits is 250000, while the sum is 39.

The spelling of 51545525502 in words is "fifty-one billion, five hundred forty-five million, five hundred twenty-five thousand, five hundred two".