51680270 has 16 divisors (see below), whose sum is σ = 93141360. Its totient is φ = 20646144.

The previous prime is 51680263. The next prime is 51680303. The reversal of 51680270 is 7208615.

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, 6509 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (5821335).

Almost surely, 2^51680270 is an apocalyptic number.

51680270 is a deficient number, since it is larger than the sum of its proper divisors (41461090).

51680270 is a wasteful number, since it uses less digits than its factorization.

51680270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 51680270 is about 7188.8990812224. The cubic root of 51680270 is about 372.4845451000.

Adding to 51680270 its reverse (7208615), we get a palindrome (58888885).

The spelling of 51680270 in words is "fifty-one million, six hundred eighty thousand, two hundred seventy".