51825388 has 12 divisors (see below), whose sum is σ = 95467960. Its totient is φ = 24548832.

The previous prime is 51825383. The next prime is 51825409. The reversal of 51825388 is 88352815.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51825388.

It is not an unprimeable number, because it can be changed into a prime (51825383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340881 + ... + 341032.

Almost surely, 2^51825388 is an apocalyptic number.

It is an amenable number.

51825388 is a deficient number, since it is larger than the sum of its proper divisors (43642572).

51825388 is a wasteful number, since it uses less digits than its factorization.

51825388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681936 (or 681934 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 51825388 is about 7198.9852062634. The cubic root of 51825388 is about 372.8328643349.

The spelling of 51825388 in words is "fifty-one million, eight hundred twenty-five thousand, three hundred eighty-eight".