51525011021204 has 48 divisors (see below), whose sum is σ = 105040398951936. Its totient is φ = 21656003616000.

The previous prime is 51525011021177. The next prime is 51525011021249. The reversal of 51525011021204 is 40212011052515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4225772 + ... + 10995779.

It is an arithmetic number, because the mean of its divisors is an integer number (2188341644832).

Almost surely, 2^{51525011021204} is an apocalyptic number.

It is an amenable number.

51525011021204 is an abundant number, since it is smaller than the sum of its proper divisors (53515387930732).

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

51525011021204 is a wasteful number, since it uses less digits than its factorization.

51525011021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223896 (or 15223894 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 51525011021204 its reverse (40212011052515), we get a palindrome (91737022073719).

The spelling of 51525011021204 in words is "fifty-one trillion, five hundred twenty-five billion, eleven million, twenty-one thousand, two hundred four".