51436725 has 24 divisors (see below), whose sum is σ = 86443872. Its totient is φ = 26980800.

The previous prime is 51436709. The next prime is 51436727. The reversal of 51436725 is 52763415.

51436725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51436725 - 2⁴ = 51436709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51436727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1047 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (3601828).

Almost surely, 2^51436725 is an apocalyptic number.

It is an amenable number.

51436725 is a deficient number, since it is larger than the sum of its proper divisors (35007147).

51436725 is a wasteful number, since it uses less digits than its factorization.

51436725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317 (or 11312 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 51436725 is about 7171.9401140835. The cubic root of 51436725 is about 371.8985082707.

The spelling of 51436725 in words is "fifty-one million, four hundred thirty-six thousand, seven hundred twenty-five".