51425652 has 24 divisors (see below), whose sum is σ = 123864832. Its totient is φ = 16588800.

The previous prime is 51425641. The next prime is 51425657. The reversal of 51425652 is 25652415.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51425657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68749 + ... + 69492.

Almost surely, 2^51425652 is an apocalyptic number.

It is an amenable number.

51425652 is an abundant number, since it is smaller than the sum of its proper divisors (72439180).

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

51425652 is a wasteful number, since it uses less digits than its factorization.

51425652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138279 (or 138277 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 51425652 is about 7171.1681056854. The cubic root of 51425652 is about 371.8718196371.

The spelling of 51425652 in words is "fifty-one million, four hundred twenty-five thousand, six hundred fifty-two".