51452844 has 24 divisors (see below), whose sum is σ = 124197360. Its totient is φ = 16559424.

The previous prime is 51452803. The next prime is 51452857. The reversal of 51452844 is 44825415.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73579 + ... + 74274.

It is an arithmetic number, because the mean of its divisors is an integer number (5174890).

Almost surely, 2^51452844 is an apocalyptic number.

It is an amenable number.

51452844 is an abundant number, since it is smaller than the sum of its proper divisors (72744516).

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

51452844 is a wasteful number, since it uses less digits than its factorization.

51452844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147889 (or 147887 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

The square root of 51452844 is about 7173.0637805613. The cubic root of 51452844 is about 371.9373521511.

The spelling of 51452844 in words is "fifty-one million, four hundred fifty-two thousand, eight hundred forty-four".