51434636225 has 24 divisors (see below), whose sum is σ = 72961871808. Its totient is φ = 35234798400.

The previous prime is 51434636189. The next prime is 51434636251. The reversal of 51434636225 is 52263643415.

It is not a de Polignac number, because 51434636225 - 2²⁰ = 51433587649 is a prime.

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, 34742 + ... + 322608.

It is an arithmetic number, because the mean of its divisors is an integer number (3040077992).

Almost surely, 2^51434636225 is an apocalyptic number.

It is an amenable number.

51434636225 is a deficient number, since it is larger than the sum of its proper divisors (21527235583).

51434636225 is a wasteful number, since it uses less digits than its factorization.

51434636225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288905 (or 288900 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The spelling of 51434636225 in words is "fifty-one billion, four hundred thirty-four million, six hundred thirty-six thousand, two hundred twenty-five".