51344724 has 24 divisors (see below), whose sum is σ = 119958048. Its totient is φ = 17092960.

The previous prime is 51344693. The next prime is 51344747. The reversal of 51344724 is 42744315.

It is a junction number, because it is equal to n+sod(n) for n = 51344691 and 51344700.

It is a congruent 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, 9019 + ... + 13565.

It is an arithmetic number, because the mean of its divisors is an integer number (4998252).

Almost surely, 2^51344724 is an apocalyptic number.

It is an amenable number.

51344724 is an abundant number, since it is smaller than the sum of its proper divisors (68613324).

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

51344724 is a wasteful number, since it uses less digits than its factorization.

51344724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5493 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 51344724 is about 7165.5232886371. The cubic root of 51344724 is about 371.6766469823.

The spelling of 51344724 in words is "fifty-one million, three hundred forty-four thousand, seven hundred twenty-four".