51569252 has 12 divisors (see below), whose sum is σ = 103138560. Its totient is φ = 22101096.

The previous prime is 51569233. The next prime is 51569257. The reversal of 51569252 is 25296515.

51569252 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51569257) 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 3 ways as a sum of consecutive naturals, for example, 920852 + ... + 920907.

It is an arithmetic number, because the mean of its divisors is an integer number (8594880).

Almost surely, 2^51569252 is an apocalyptic number.

It is an amenable number.

51569252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51569252 is a wasteful number, since it uses less digits than its factorization.

51569252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841770 (or 1841768 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 51569252 is about 7181.1734417155. The cubic root of 51569252 is about 372.2176338568.

The spelling of 51569252 in words is "fifty-one million, five hundred sixty-nine thousand, two hundred fifty-two".