51631006 has 36 divisors (see below), whose sum is σ = 95754528. Its totient is φ = 20814528.

The previous prime is 51630979. The next prime is 51631007. The reversal of 51631006 is 60013615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51631007) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27411 + ... + 29233.

It is an arithmetic number, because the mean of its divisors is an integer number (2659848).

Almost surely, 2^51631006 is an apocalyptic number.

51631006 is a deficient number, since it is larger than the sum of its proper divisors (44123522).

51631006 is a wasteful number, since it uses less digits than its factorization.

51631006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 51631006 is about 7185.4718703785. The cubic root of 51631006 is about 372.3661510305.

The spelling of 51631006 in words is "fifty-one million, six hundred thirty-one thousand, six".