51423692 has 24 divisors (see below), whose sum is σ = 92072400. Its totient is φ = 25122816.

The previous prime is 51423661. The next prime is 51423703. The reversal of 51423692 is 29632415.

It is a happy number.

It is an unprimeable number.

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, 44984 + ... + 46112.

It is an arithmetic number, because the mean of its divisors is an integer number (3836350).

Almost surely, 2^51423692 is an apocalyptic number.

It is an amenable number.

51423692 is a deficient number, since it is larger than the sum of its proper divisors (40648708).

51423692 is a wasteful number, since it uses less digits than its factorization.

51423692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1383 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 51423692 is about 7171.0314460334. The cubic root of 51423692 is about 371.8670951595.

The spelling of 51423692 in words is "fifty-one million, four hundred twenty-three thousand, six hundred ninety-two".