51740688 has 80 divisors (see below), whose sum is σ = 139491072. Its totient is φ = 16512000.

The previous prime is 51740687. The next prime is 51740737. The reversal of 51740688 is 88604715.

It is not an unprimeable number, because it can be changed into a prime (51740681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119833 + ... + 120263.

Almost surely, 2^51740688 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 51740688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69745536).

51740688 is an abundant number, since it is smaller than the sum of its proper divisors (87750384).

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

51740688 is a wasteful number, since it uses less digits than its factorization.

51740688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 51740688 is about 7193.1000271093. The cubic root of 51740688 is about 372.6296424265.

The spelling of 51740688 in words is "fifty-one million, seven hundred forty thousand, six hundred eighty-eight".