51992232 has 32 divisors (see below), whose sum is σ = 130157280. Its totient is φ = 17307200.

The previous prime is 51992231. The next prime is 51992233. The reversal of 51992232 is 23229915.

It is an interprime number because it is at equal distance from previous prime (51992231) and next prime (51992233).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51992193 and 51992202.

It is not an unprimeable number, because it can be changed into a prime (51992231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34078 + ... + 35570.

It is an arithmetic number, because the mean of its divisors is an integer number (4067415).

Almost surely, 2^51992232 is an apocalyptic number.

It is an amenable number.

51992232 is an abundant number, since it is smaller than the sum of its proper divisors (78165048).

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

51992232 is a wasteful number, since it uses less digits than its factorization.

51992232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953 (or 2949 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 51992232 is about 7210.5639169208. The cubic root of 51992232 is about 373.2325287647.

The spelling of 51992232 in words is "fifty-one million, nine hundred ninety-two thousand, two hundred thirty-two".