51269668 has 48 divisors (see below), whose sum is σ = 97542144. Its totient is φ = 23518880.

The previous prime is 51269627. The next prime is 51269683. The reversal of 51269668 is 86696215.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306921 + ... + 307087.

It is an arithmetic number, because the mean of its divisors is an integer number (2032128).

Almost surely, 2^51269668 is an apocalyptic number.

It is an amenable number.

51269668 is a deficient number, since it is larger than the sum of its proper divisors (46272476).

51269668 is a wasteful number, since it uses less digits than its factorization.

51269668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 310 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 51269668 is about 7160.2840725770. The cubic root of 51269668 is about 371.4954523408.

The spelling of 51269668 in words is "fifty-one million, two hundred sixty-nine thousand, six hundred sixty-eight".