51186732 has 12 divisors (see below), whose sum is σ = 119435736. Its totient is φ = 17062240.

The previous prime is 51186731. The next prime is 51186739. The reversal of 51186732 is 23768115.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 51186693 and 51186702.

It is not an unprimeable number, because it can be changed into a prime (51186731) 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, 2132769 + ... + 2132792.

It is an arithmetic number, because the mean of its divisors is an integer number (9952978).

Almost surely, 2^51186732 is an apocalyptic number.

It is an amenable number.

51186732 is an abundant number, since it is smaller than the sum of its proper divisors (68249004).

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

51186732 is a wasteful number, since it uses less digits than its factorization.

51186732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265568 (or 4265566 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 51186732 is about 7154.4903382421. The cubic root of 51186732 is about 371.2950286051.

The spelling of 51186732 in words is "fifty-one million, one hundred eighty-six thousand, seven hundred thirty-two".