51588372 has 24 divisors (see below), whose sum is σ = 131316192. Its totient is φ = 15632800.

The previous prime is 51588367. The next prime is 51588377. The reversal of 51588372 is 27388515.

It is an interprime number because it is at equal distance from previous prime (51588367) and next prime (51588377).

It is a super-2 number, since 2×51588372² = 5322720251220768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51588372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51588377) by changing a digit.

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, 195279 + ... + 195542.

It is an arithmetic number, because the mean of its divisors is an integer number (5471508).

Almost surely, 2^51588372 is an apocalyptic number.

It is an amenable number.

51588372 is an abundant number, since it is smaller than the sum of its proper divisors (79727820).

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

51588372 is a wasteful number, since it uses less digits than its factorization.

51588372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390839 (or 390837 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 51588372 is about 7182.5045770957. The cubic root of 51588372 is about 372.2636297524.

It can be divided in two parts, 5158 and 8372, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 51588372 in words is "fifty-one million, five hundred eighty-eight thousand, three hundred seventy-two".