51292692 has 36 divisors (see below), whose sum is σ = 141444576. Its totient is φ = 15543120.

The previous prime is 51292687. The next prime is 51292699. The reversal of 51292692 is 29629215.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51292699) 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 11 ways as a sum of consecutive naturals, for example, 64368 + ... + 65159.

It is an arithmetic number, because the mean of its divisors is an integer number (3929016).

Almost surely, 2^51292692 is an apocalyptic number.

It is an amenable number.

51292692 is an abundant number, since it is smaller than the sum of its proper divisors (90151884).

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

51292692 is a wasteful number, since it uses less digits than its factorization.

51292692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129548 (or 129543 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 51292692 is about 7161.8916495574. The cubic root of 51292692 is about 371.5510539702.

It can be divided in two parts, 51292 and 692, that added together give a square (51984 = 228²).

The spelling of 51292692 in words is "fifty-one million, two hundred ninety-two thousand, six hundred ninety-two".