51258252 has 24 divisors (see below), whose sum is σ = 123461632. Its totient is φ = 16534800.

The previous prime is 51258223. The next prime is 51258293. The reversal of 51258252 is 25285215.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68524 + ... + 69267.

Almost surely, 2^51258252 is an apocalyptic number.

It is an amenable number.

51258252 is an abundant number, since it is smaller than the sum of its proper divisors (72203380).

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

51258252 is a wasteful number, since it uses less digits than its factorization.

51258252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137829 (or 137827 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 51258252 is about 7159.4868531201. The cubic root of 51258252 is about 371.4678771873.

The spelling of 51258252 in words is "fifty-one million, two hundred fifty-eight thousand, two hundred fifty-two".