51265692 has 72 divisors (see below), whose sum is σ = 135862272. Its totient is φ = 16279200.

The previous prime is 51265651. The next prime is 51265717. The reversal of 51265692 is 29656215.

51265692 is a `hidden beast` number, since 512 + 6 + 56 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78913 + ... + 79559.

It is an arithmetic number, because the mean of its divisors is an integer number (1886976).

Almost surely, 2^51265692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51265692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67931136).

51265692 is an abundant number, since it is smaller than the sum of its proper divisors (84596580).

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

51265692 is a wasteful number, since it uses less digits than its factorization.

51265692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 754 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 51265692 is about 7160.0064245781. The cubic root of 51265692 is about 371.4858488451.

It can be divided in two parts, 5126 and 5692, that multiplied together give a palindrome (29177192).

The spelling of 51265692 in words is "fifty-one million, two hundred sixty-five thousand, six hundred ninety-two".