51508752 has 20 divisors (see below), whose sum is σ = 133064400. Its totient is φ = 17169568.

The previous prime is 51508747. The next prime is 51508771. The reversal of 51508752 is 25780515.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 536502 + ... + 536597.

It is an arithmetic number, because the mean of its divisors is an integer number (6653220).

Almost surely, 2^51508752 is an apocalyptic number.

It is an amenable number.

51508752 is an abundant number, since it is smaller than the sum of its proper divisors (81555648).

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

51508752 is a wasteful number, since it uses less digits than its factorization.

51508752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073110 (or 1073104 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 51508752 is about 7176.9598020332. The cubic root of 51508752 is about 372.0720175056.

The spelling of 51508752 in words is "fifty-one million, five hundred eight thousand, seven hundred fifty-two".