51667732 has 24 divisors (see below), whose sum is σ = 92806560. Its totient is φ = 25160160.

The previous prime is 51667727. The next prime is 51667757. The reversal of 51667732 is 23776615.

It is a junction number, because it is equal to n+sod(n) for n = 51667691 and 51667700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25119 + ... + 27097.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2^51667732 is an apocalyptic number.

It is an amenable number.

51667732 is a deficient number, since it is larger than the sum of its proper divisors (41138828).

51667732 is a wasteful number, since it uses less digits than its factorization.

51667732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2149 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 51667732 is about 7188.0269893762. The cubic root of 51667732 is about 372.4544201996.

The spelling of 51667732 in words is "fifty-one million, six hundred sixty-seven thousand, seven hundred thirty-two".