51431466 has 16 divisors (see below), whose sum is σ = 105372288. Its totient is φ = 16725600.

The previous prime is 51431459. The next prime is 51431467. The reversal of 51431466 is 66413415.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51431467) 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, 104290 + ... + 104781.

It is an arithmetic number, because the mean of its divisors is an integer number (6585768).

Almost surely, 2^51431466 is an apocalyptic number.

51431466 is an abundant number, since it is smaller than the sum of its proper divisors (53940822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51431466 is a wasteful number, since it uses less digits than its factorization.

51431466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209117.

The product of its digits is 8640, while the sum is 30.

The square root of 51431466 is about 7171.5734675174. The cubic root of 51431466 is about 371.8858332743.

The spelling of 51431466 in words is "fifty-one million, four hundred thirty-one thousand, four hundred sixty-six".