51894395 has 16 divisors (see below), whose sum is σ = 71516928. Its totient is φ = 35411040.

The previous prime is 51894383. The next prime is 51894413. The reversal of 51894395 is 59349815.

It is a happy number.

It is not a de Polignac number, because 51894395 - 2⁴ = 51894379 is a prime.

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, 3872 + ... + 10898.

It is an arithmetic number, because the mean of its divisors is an integer number (4469808).

Almost surely, 2^51894395 is an apocalyptic number.

51894395 is a deficient number, since it is larger than the sum of its proper divisors (19622533).

51894395 is a wasteful number, since it uses less digits than its factorization.

51894395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7250.

The product of its digits is 194400, while the sum is 44.

The square root of 51894395 is about 7203.7764401736. The cubic root of 51894395 is about 372.9982701825.

The spelling of 51894395 in words is "fifty-one million, eight hundred ninety-four thousand, three hundred ninety-five".