51525523205 has 32 divisors (see below), whose sum is σ = 67716581856. Its totient is φ = 37407412224.

The previous prime is 51525523177. The next prime is 51525523229. The reversal of 51525523205 is 50232552515.

It can be written as a sum of positive squares in 16 ways, for example, as 31701446401 + 19824076804 = 178049^2 + 140798^2 .

It is not a de Polignac number, because 51525523205 - 2⁸ = 51525522949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1467839 + ... + 1502531.

It is an arithmetic number, because the mean of its divisors is an integer number (2116143183).

Almost surely, 2^51525523205 is an apocalyptic number.

It is an amenable number.

51525523205 is a deficient number, since it is larger than the sum of its proper divisors (16191058651).

51525523205 is a wasteful number, since it uses less digits than its factorization.

51525523205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35097.

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 51525523205 in words is "fifty-one billion, five hundred twenty-five million, five hundred twenty-three thousand, two hundred five".