51132420325 has 24 divisors (see below), whose sum is σ = 72492235200. Its totient is φ = 35047574400.

The previous prime is 51132420281. The next prime is 51132420347. The reversal of 51132420325 is 52302423115.

It is not a de Polignac number, because 51132420325 - 2²⁵ = 51098865893 is a prime.

It is a super-2 number, since 2×51132420325² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51132420293 and 51132420302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367326 + ... + 487024.

It is an arithmetic number, because the mean of its divisors is an integer number (3020509800).

Almost surely, 2^51132420325 is an apocalyptic number.

It is an amenable number.

51132420325 is a deficient number, since it is larger than the sum of its proper divisors (21359814875).

51132420325 is a wasteful number, since it uses less digits than its factorization.

51132420325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122157 (or 122152 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 51132420325 in words is "fifty-one billion, one hundred thirty-two million, four hundred twenty thousand, three hundred twenty-five".