51888893 has 12 divisors (see below), whose sum is σ = 61647552. Its totient is φ = 43527960.

The previous prime is 51888877. The next prime is 51888919. The reversal of 51888893 is 39888815.

It is not a de Polignac number, because 51888893 - 2⁴ = 51888877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51888853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8963 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (5137296).

Almost surely, 2^51888893 is an apocalyptic number.

It is an amenable number.

51888893 is a deficient number, since it is larger than the sum of its proper divisors (9758659).

51888893 is a wasteful number, since it uses less digits than its factorization.

51888893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22592 (or 22585 counting only the distinct ones).

The product of its digits is 552960, while the sum is 50.

The square root of 51888893 is about 7203.3945470174. The cubic root of 51888893 is about 372.9850875834.

The spelling of 51888893 in words is "fifty-one million, eight hundred eighty-eight thousand, eight hundred ninety-three".