51040368 has 50 divisors (see below), whose sum is σ = 147729384. Its totient is φ = 17013024.

The previous prime is 51040331. The next prime is 51040373. The reversal of 51040368 is 86304015.

51040368 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18396 + ... + 20987.

Almost surely, 2^51040368 is an apocalyptic number.

It is an amenable number.

51040368 is an abundant number, since it is smaller than the sum of its proper divisors (96689016).

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

51040368 is a wasteful number, since it uses less digits than its factorization.

51040368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39403 (or 39388 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51040368 is about 7144.2541948058. The cubic root of 51040368 is about 370.9407954969.

The spelling of 51040368 in words is "fifty-one million, forty thousand, three hundred sixty-eight".