51068180 has 12 divisors (see below), whose sum is σ = 107243220. Its totient is φ = 20427264.

The previous prime is 51068167. The next prime is 51068231. The reversal of 51068180 is 8186015.

It can be written as a sum of positive squares in 2 ways, for example, as 6739216 + 44328964 = 2596^2 + 6658^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276685 + ... + 1276724.

It is an arithmetic number, because the mean of its divisors is an integer number (8936935).

Almost surely, 2^51068180 is an apocalyptic number.

It is an amenable number.

51068180 is an abundant number, since it is smaller than the sum of its proper divisors (56175040).

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

51068180 is a wasteful number, since it uses less digits than its factorization.

51068180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553418 (or 2553416 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 51068180 is about 7146.2003890179. The cubic root of 51068180 is about 371.0081587267.

The spelling of 51068180 in words is "fifty-one million, sixty-eight thousand, one hundred eighty".