51431002 has 16 divisors (see below), whose sum is σ = 88732800. Its totient is φ = 21900528.

The previous prime is 51430963. The next prime is 51431011. The reversal of 51431002 is 20013415.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9502 + ... + 13897.

It is an arithmetic number, because the mean of its divisors is an integer number (5545800).

Almost surely, 2^51431002 is an apocalyptic number.

51431002 is a deficient number, since it is larger than the sum of its proper divisors (37301798).

51431002 is a wasteful number, since it uses less digits than its factorization.

51431002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23565.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 51431002 is about 7171.5411175005. The cubic root of 51431002 is about 371.8847149217.

Adding to 51431002 its reverse (20013415), we get a palindrome (71444417).

The spelling of 51431002 in words is "fifty-one million, four hundred thirty-one thousand, two".