51312592 has 20 divisors (see below), whose sum is σ = 100618560. Its totient is φ = 25346528.

The previous prime is 51312589. The next prime is 51312593. The reversal of 51312592 is 29521315.

It is a super-3 number, since 3×51312592³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51312592.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51312593) 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, 17992 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (5030928).

Almost surely, 2^51312592 is an apocalyptic number.

It is an amenable number.

51312592 is a deficient number, since it is larger than the sum of its proper divisors (49305968).

51312592 is a wasteful number, since it uses less digits than its factorization.

51312592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38730 (or 38724 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 51312592 is about 7163.2808125886. The cubic root of 51312592 is about 371.5990979163.

The spelling of 51312592 in words is "fifty-one million, three hundred twelve thousand, five hundred ninety-two".