51245327 has 12 divisors (see below), whose sum is σ = 63119520. Its totient is φ = 41340096.

The previous prime is 51245317. The next prime is 51245339. The reversal of 51245327 is 72354215.

It is a happy number.

It is not a de Polignac number, because 51245327 - 2²² = 47051023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51245327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51245317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29927 + ... + 31592.

It is an arithmetic number, because the mean of its divisors is an integer number (5259960).

Almost surely, 2^51245327 is an apocalyptic number.

51245327 is a deficient number, since it is larger than the sum of its proper divisors (11874193).

51245327 is a wasteful number, since it uses less digits than its factorization.

51245327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61550 (or 61543 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 51245327 is about 7158.5841477208. The cubic root of 51245327 is about 371.4366521277.

The spelling of 51245327 in words is "fifty-one million, two hundred forty-five thousand, three hundred twenty-seven".