51986204 has 24 divisors (see below), whose sum is σ = 101399760. Its totient is φ = 23175936.

The previous prime is 51986203. The next prime is 51986219. The reversal of 51986204 is 40268915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51986203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18827 + ... + 21410.

It is an arithmetic number, because the mean of its divisors is an integer number (4224990).

Almost surely, 2^51986204 is an apocalyptic number.

It is an amenable number.

51986204 is a deficient number, since it is larger than the sum of its proper divisors (49413556).

51986204 is a wasteful number, since it uses less digits than its factorization.

51986204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40277 (or 40275 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 51986204 is about 7210.1459069841. The cubic root of 51986204 is about 373.2181039647.

The spelling of 51986204 in words is "fifty-one million, nine hundred eighty-six thousand, two hundred four".