51944128 has 14 divisors (see below), whose sum is σ = 103076756. Its totient is φ = 25972032.

The previous prime is 51944117. The next prime is 51944147. The reversal of 51944128 is 82144915.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51944093 and 51944102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405750 + ... + 405877.

Almost surely, 2^51944128 is an apocalyptic number.

It is an amenable number.

51944128 is a deficient number, since it is larger than the sum of its proper divisors (51132628).

51944128 is an equidigital number, since it uses as much as digits as its factorization.

51944128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811639 (or 811629 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 51944128 is about 7207.2274835751. The cubic root of 51944128 is about 373.1173864520.

The spelling of 51944128 in words is "fifty-one million, nine hundred forty-four thousand, one hundred twenty-eight".