51168190 has 16 divisors (see below), whose sum is σ = 92251728. Its totient is φ = 20434176.

The previous prime is 51168167. The next prime is 51168193. The reversal of 51168190 is 9186115.

It is a super-2 number, since 2×51168190² = 5236367335752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51168193) 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, 2929 + ... + 10531.

It is an arithmetic number, because the mean of its divisors is an integer number (5765733).

Almost surely, 2^51168190 is an apocalyptic number.

51168190 is a deficient number, since it is larger than the sum of its proper divisors (41083538).

51168190 is a wasteful number, since it uses less digits than its factorization.

51168190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 51168190 is about 7153.1943913192. The cubic root of 51168190 is about 371.2501902677.

The spelling of 51168190 in words is "fifty-one million, one hundred sixty-eight thousand, one hundred ninety".