51986294 has 16 divisors (see below), whose sum is σ = 78921648. Its totient is φ = 25681152.

The previous prime is 51986281. The next prime is 51986309. The reversal of 51986294 is 49268915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92057 + ... + 92619.

It is an arithmetic number, because the mean of its divisors is an integer number (4932603).

Almost surely, 2^51986294 is an apocalyptic number.

51986294 is a deficient number, since it is larger than the sum of its proper divisors (26935354).

51986294 is a wasteful number, since it uses less digits than its factorization.

51986294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its digits is 155520, while the sum is 44.

The square root of 51986294 is about 7210.1521481866. The cubic root of 51986294 is about 373.2183193399.

The spelling of 51986294 in words is "fifty-one million, nine hundred eighty-six thousand, two hundred ninety-four".