51426145225 has 48 divisors (see below), whose sum is σ = 80398604160. Its totient is φ = 31757068800.

The previous prime is 51426145217. The next prime is 51426145261. The reversal of 51426145225 is 52254162415.

It is not a de Polignac number, because 51426145225 - 2³ = 51426145217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182395 + ... + 368944.

It is an arithmetic number, because the mean of its divisors is an integer number (1674970920).

Almost surely, 2^51426145225 is an apocalyptic number.

It is an amenable number.

51426145225 is a deficient number, since it is larger than the sum of its proper divisors (28972458935).

51426145225 is a wasteful number, since it uses less digits than its factorization.

51426145225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551410 (or 551405 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The spelling of 51426145225 in words is "fifty-one billion, four hundred twenty-six million, one hundred forty-five thousand, two hundred twenty-five".