51983244 has 54 divisors (see below), whose sum is σ = 134841980. Its totient is φ = 16885440.

The previous prime is 51983231. The next prime is 51983251. The reversal of 51983244 is 44238915.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51983199 and 51983208.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60087 + ... + 60945.

Almost surely, 2^51983244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51983244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67420990).

51983244 is an abundant number, since it is smaller than the sum of its proper divisors (82858736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51983244 is a wasteful number, since it uses less digits than its factorization.

51983244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 905 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 51983244 is about 7209.9406377584. The cubic root of 51983244 is about 373.2110203767.

The spelling of 51983244 in words is "fifty-one million, nine hundred eighty-three thousand, two hundred forty-four".