51994827 has 12 divisors (see below), whose sum is σ = 75324600. Its totient is φ = 34561248.

The previous prime is 51994799. The next prime is 51994829. The reversal of 51994827 is 72849915.

It is not a de Polignac number, because 51994827 - 2⁸ = 51994571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51994829) 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, 5202 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (6277050).

Almost surely, 2^51994827 is an apocalyptic number.

51994827 is a deficient number, since it is larger than the sum of its proper divisors (23329773).

51994827 is a wasteful number, since it uses less digits than its factorization.

51994827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17002 (or 16999 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 51994827 is about 7210.7438589926. The cubic root of 51994827 is about 373.2387381686.

The spelling of 51994827 in words is "fifty-one million, nine hundred ninety-four thousand, eight hundred twenty-seven".