51995214 has 24 divisors (see below), whose sum is σ = 119283840. Its totient is φ = 16312128.

The previous prime is 51995183. The next prime is 51995221. The reversal of 51995214 is 41259915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84654 + ... + 85265.

It is an arithmetic number, because the mean of its divisors is an integer number (4970160).

Almost surely, 2^51995214 is an apocalyptic number.

51995214 is an abundant number, since it is smaller than the sum of its proper divisors (67288626).

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

51995214 is a wasteful number, since it uses less digits than its factorization.

51995214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169944 (or 169941 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 51995214 is about 7210.7706938995. The cubic root of 51995214 is about 373.2396641776.

The spelling of 51995214 in words is "fifty-one million, nine hundred ninety-five thousand, two hundred fourteen".