51889412 has 24 divisors (see below), whose sum is σ = 94940160. Its totient is φ = 24785280.

The previous prime is 51889393. The next prime is 51889441. The reversal of 51889412 is 21498815.

It is a super-2 number, since 2×51889412² = 5385022155411488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7148 + ... + 12444.

It is an arithmetic number, because the mean of its divisors is an integer number (3955840).

Almost surely, 2^51889412 is an apocalyptic number.

It is an amenable number.

51889412 is a deficient number, since it is larger than the sum of its proper divisors (43050748).

51889412 is a wasteful number, since it uses less digits than its factorization.

51889412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411 (or 5409 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 51889412 is about 7203.4305716096. The cubic root of 51889412 is about 372.9863311290.

The spelling of 51889412 in words is "fifty-one million, eight hundred eighty-nine thousand, four hundred twelve".