51885044 has 6 divisors (see below), whose sum is σ = 90798834. Its totient is φ = 25942520.

The previous prime is 51885023. The next prime is 51885061. The reversal of 51885044 is 44058815.

It can be written as a sum of positive squares in only one way, i.e., 46076944 + 5808100 = 6788^2 + 2410^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51884995 and 51885013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6485627 + ... + 6485634.

It is an arithmetic number, because the mean of its divisors is an integer number (15133139).

Almost surely, 2^51885044 is an apocalyptic number.

It is an amenable number.

51885044 is a deficient number, since it is larger than the sum of its proper divisors (38913790).

51885044 is a wasteful number, since it uses less digits than its factorization.

51885044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12971265 (or 12971263 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 51885044 is about 7203.1273763554. The cubic root of 51885044 is about 372.9758649603.

The spelling of 51885044 in words is "fifty-one million, eight hundred eighty-five thousand, forty-four".