51315292 has 24 divisors (see below), whose sum is σ = 105943040. Its totient is φ = 21282480.

The previous prime is 51315283. The next prime is 51315301. The reversal of 51315292 is 29251315.

It is an interprime number because it is at equal distance from previous prime (51315283) and next prime (51315301).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 51315292.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28692 + ... + 30427.

Almost surely, 2^51315292 is an apocalyptic number.

It is an amenable number.

51315292 is an abundant number, since it is smaller than the sum of its proper divisors (54627748).

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

51315292 is a wasteful number, since it uses less digits than its factorization.

51315292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59161 (or 59159 counting only the distinct ones).

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

The square root of 51315292 is about 7163.4692712400. The cubic root of 51315292 is about 371.6056154846.

The spelling of 51315292 in words is "fifty-one million, three hundred fifteen thousand, two hundred ninety-two".