51994192 has 20 divisors (see below), whose sum is σ = 103989376. Its totient is φ = 25158240.

The previous prime is 51994171. The next prime is 51994193. The reversal of 51994192 is 29149915.

51994192 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51994193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51918 + ... + 52909.

Almost surely, 2^51994192 is an apocalyptic number.

It is an amenable number.

51994192 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51994192 is a wasteful number, since it uses less digits than its factorization.

51994192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104866 (or 104860 counting only the distinct ones).

The product of its digits is 29160, while the sum is 40.

The square root of 51994192 is about 7210.6998273399. The cubic root of 51994192 is about 373.2372187382.

The spelling of 51994192 in words is "fifty-one million, nine hundred ninety-four thousand, one hundred ninety-two".