51725072 has 80 divisors (see below), whose sum is σ = 119194752. Its totient is φ = 21288960.

The previous prime is 51725059. The next prime is 51725111. The reversal of 51725072 is 27052715.

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, 457688 + ... + 457800.

Almost surely, 2^51725072 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 51725072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59597376).

51725072 is an abundant number, since it is smaller than the sum of its proper divisors (67469680).

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

51725072 is a wasteful number, since it uses less digits than its factorization.

51725072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 51725072 is about 7192.0144604971. The cubic root of 51725072 is about 372.5921505271.

Adding to 51725072 its reverse (27052715), we get a palindrome (78777787).

The spelling of 51725072 in words is "fifty-one million, seven hundred twenty-five thousand, seventy-two".