51263108 has 18 divisors (see below), whose sum is σ = 97143354. Its totient is φ = 23659584.

The previous prime is 51263099. The next prime is 51263129. The reversal of 51263108 is 80136215.

It can be written as a sum of positive squares in 3 ways, for example, as 2849344 + 48413764 = 1688^2 + 6958^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 5 ways as a sum of consecutive naturals, for example, 37241 + ... + 38592.

It is an arithmetic number, because the mean of its divisors is an integer number (5396853).

Almost surely, 2^51263108 is an apocalyptic number.

It is an amenable number.

51263108 is a deficient number, since it is larger than the sum of its proper divisors (45880246).

51263108 is a wasteful number, since it uses less digits than its factorization.

51263108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75863 (or 75848 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 51263108 is about 7159.8259755388. The cubic root of 51263108 is about 371.4796072729.

The spelling of 51263108 in words is "fifty-one million, two hundred sixty-three thousand, one hundred eight".