51745792 has 44 divisors (see below), whose sum is σ = 118234720. Its totient is φ = 22173696.

The previous prime is 51745783. The next prime is 51745819. The reversal of 51745792 is 29754715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3559 + ... + 10777.

Almost surely, 2^51745792 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 51745792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59117360).

51745792 is an abundant number, since it is smaller than the sum of its proper divisors (66488928).

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

51745792 is an equidigital number, since it uses as much as digits as its factorization.

51745792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7246 (or 7228 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 51745792 is about 7193.4548028051. The cubic root of 51745792 is about 372.6418948029.

The spelling of 51745792 in words is "fifty-one million, seven hundred forty-five thousand, seven hundred ninety-two".