51866432 has 28 divisors (see below), whose sum is σ = 103485696. Its totient is φ = 25791360.

The previous prime is 51866417. The next prime is 51866443. The reversal of 51866432 is 23466815.

It is a super-3 number, since 3×51866432³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51866392 and 51866401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10103 + ... + 14345.

Almost surely, 2^51866432 is an apocalyptic number.

It is an amenable number.

51866432 is a deficient number, since it is larger than the sum of its proper divisors (51619264).

51866432 is a wasteful number, since it uses less digits than its factorization.

51866432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446 (or 4436 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 51866432 is about 7201.8353216385. The cubic root of 51866432 is about 372.9312621456.

The spelling of 51866432 in words is "fifty-one million, eight hundred sixty-six thousand, four hundred thirty-two".