51244236 has 18 divisors (see below), whose sum is σ = 129534132. Its totient is φ = 17081400.

The previous prime is 51244217. The next prime is 51244243. The reversal of 51244236 is 63244215.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711690 + ... + 711761.

Almost surely, 2^51244236 is an apocalyptic number.

It is an amenable number.

51244236 is an abundant number, since it is smaller than the sum of its proper divisors (78289896).

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

51244236 is a wasteful number, since it uses less digits than its factorization.

51244236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423461 (or 1423456 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 51244236 is about 7158.5079450958. The cubic root of 51244236 is about 371.4340161783.

The spelling of 51244236 in words is "fifty-one million, two hundred forty-four thousand, two hundred thirty-six".