51742760 has 64 divisors (see below), whose sum is σ = 121176000. Its totient is φ = 19869696.

The previous prime is 51742753. The next prime is 51742777. The reversal of 51742760 is 6724715.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115016 + ... + 115464.

It is an arithmetic number, because the mean of its divisors is an integer number (1893375).

Almost surely, 2^51742760 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 51742760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60588000).

51742760 is an abundant number, since it is smaller than the sum of its proper divisors (69433240).

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

51742760 is a wasteful number, since it uses less digits than its factorization.

51742760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 51742760 is about 7193.2440525816. The cubic root of 51742760 is about 372.6346164508.

The spelling of 51742760 in words is "fifty-one million, seven hundred forty-two thousand, seven hundred sixty".