51363378 has 24 divisors (see below), whose sum is σ = 121404816. Its totient is φ = 15564600.

The previous prime is 51363337. The next prime is 51363391. The reversal of 51363378 is 87336315.

51363378 is a `hidden beast` number, since 5 + 13 + 633 + 7 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129508 + ... + 129903.

It is an arithmetic number, because the mean of its divisors is an integer number (5058534).

Almost surely, 2^51363378 is an apocalyptic number.

51363378 is an abundant number, since it is smaller than the sum of its proper divisors (70041438).

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

51363378 is a wasteful number, since it uses less digits than its factorization.

51363378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259430 (or 259427 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 51363378 is about 7166.8248199604. The cubic root of 51363378 is about 371.7216526886.

The spelling of 51363378 in words is "fifty-one million, three hundred sixty-three thousand, three hundred seventy-eight".