51043392 has 112 divisors (see below), whose sum is σ = 151993600. Its totient is φ = 16796160.

The previous prime is 51043381. The next prime is 51043411. The reversal of 51043392 is 29334015.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 188217 + ... + 188487.

Almost surely, 2^51043392 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 51043392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75996800).

51043392 is an abundant number, since it is smaller than the sum of its proper divisors (100950208).

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

51043392 is a wasteful number, since it uses less digits than its factorization.

51043392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 51043392 is about 7144.4658302773. The cubic root of 51043392 is about 370.9481210894.

The spelling of 51043392 in words is "fifty-one million, forty-three thousand, three hundred ninety-two".