51247552 has 14 divisors (see below), whose sum is σ = 101694488. Its totient is φ = 25623744.

The previous prime is 51247517. The next prime is 51247561. The reversal of 51247552 is 25574215.

51247552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400308 + ... + 400435.

It is an arithmetic number, because the mean of its divisors is an integer number (7263892).

Almost surely, 2^51247552 is an apocalyptic number.

It is an amenable number.

51247552 is a deficient number, since it is larger than the sum of its proper divisors (50446936).

51247552 is an equidigital number, since it uses as much as digits as its factorization.

51247552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800755 (or 800745 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 51247552 is about 7158.7395538600. The cubic root of 51247552 is about 371.4420278021.

The spelling of 51247552 in words is "fifty-one million, two hundred forty-seven thousand, five hundred fifty-two".