51725622 has 16 divisors (see below), whose sum is σ = 111409200. Its totient is φ = 15915552.

The previous prime is 51725573. The next prime is 51725627. The reversal of 51725622 is 22652715.

It is a self number, because there is not a number n which added to its sum of digits gives 51725622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51725627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331497 + ... + 331652.

It is an arithmetic number, because the mean of its divisors is an integer number (6963075).

Almost surely, 2^51725622 is an apocalyptic number.

51725622 is an abundant number, since it is smaller than the sum of its proper divisors (59683578).

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

51725622 is a wasteful number, since it uses less digits than its factorization.

51725622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663167.

The product of its digits is 8400, while the sum is 30.

The square root of 51725622 is about 7192.0526972485. The cubic root of 51725622 is about 372.5934711307.

The spelling of 51725622 in words is "fifty-one million, seven hundred twenty-five thousand, six hundred twenty-two".