51372 has 18 divisors (see below), whose sum is σ = 129948. Its totient is φ = 17112.

The previous prime is 51361. The next prime is 51383. The reversal of 51372 is 27315.

It is an interprime number because it is at equal distance from previous prime (51361) and next prime (51383).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678 + ... + 749.

2⁵¹³⁷² is an apocalyptic number.

It is an amenable number.

51372 is an abundant number, since it is smaller than the sum of its proper divisors (78576).

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

51372 is a wasteful number, since it uses less digits than its factorization.

51372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437 (or 1432 counting only the distinct ones).

The product of its digits is 210, while the sum is 18.

The square root of 51372 is about 226.6539212103. The cubic root of 51372 is about 37.1742450936.

Adding to 51372 its reverse (27315), we get a palindrome (78687).

It can be divided in two parts, 513 and 72, that added together give a palindrome (585).

The spelling of 51372 in words is "fifty-one thousand, three hundred seventy-two".