51225696 has 60 divisors (see below), whose sum is σ = 150660972. Its totient is φ = 17074368.

The previous prime is 51225689. The next prime is 51225701. The reversal of 51225696 is 69652215.

51225696 is a `hidden beast` number, since 512 + 2 + 56 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51225696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7290 + ... + 12473.

Almost surely, 2^51225696 is an apocalyptic number.

It is an amenable number.

51225696 is an abundant number, since it is smaller than the sum of its proper divisors (99435276).

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

51225696 is a wasteful number, since it uses less digits than its factorization.

51225696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19785 (or 19768 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 51225696 is about 7157.2128653548. The cubic root of 51225696 is about 371.3892162303.

The spelling of 51225696 in words is "fifty-one million, two hundred twenty-five thousand, six hundred ninety-six".