51886899 has 10 divisors (see below), whose sum is σ = 77510180. Its totient is φ = 34591212.

The previous prime is 51886897. The next prime is 51886903. The reversal of 51886899 is 99868815.

It is not a de Polignac number, because 51886899 - 2¹ = 51886897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51886897) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 320209 + ... + 320370.

It is an arithmetic number, because the mean of its divisors is an integer number (7751018).

Almost surely, 2^51886899 is an apocalyptic number.

51886899 is a deficient number, since it is larger than the sum of its proper divisors (25623281).

51886899 is an equidigital number, since it uses as much as digits as its factorization.

51886899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640591 (or 640582 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 51886899 is about 7203.2561387195. The cubic root of 51886899 is about 372.9803097992.

The spelling of 51886899 in words is "fifty-one million, eight hundred eighty-six thousand, eight hundred ninety-nine".