51423792 has 80 divisors (see below), whose sum is σ = 156751872. Its totient is φ = 14215680.

The previous prime is 51423787. The next prime is 51423803. The reversal of 51423792 is 29732415.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7948 + ... + 12884.

Almost surely, 2^51423792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51423792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78375936).

51423792 is an abundant number, since it is smaller than the sum of its proper divisors (105328080).

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

51423792 is a wasteful number, since it uses less digits than its factorization.

51423792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986 (or 4980 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 51423792 is about 7171.0384185277. The cubic root of 51423792 is about 371.8673362072.

The spelling of 51423792 in words is "fifty-one million, four hundred twenty-three thousand, seven hundred ninety-two".