51371488 has 48 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 21730176.

The previous prime is 51371471. The next prime is 51371521. The reversal of 51371488 is 88417315.

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, 16245 + ... + 19147.

It is an arithmetic number, because the mean of its divisors is an integer number (2439360).

Almost surely, 2^51371488 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 51371488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58544640).

51371488 is an abundant number, since it is smaller than the sum of its proper divisors (65717792).

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

51371488 is a wasteful number, since it uses less digits than its factorization.

51371488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999 (or 2991 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 51371488 is about 7167.3905990953. The cubic root of 51371488 is about 371.7412159395.

The spelling of 51371488 in words is "fifty-one million, three hundred seventy-one thousand, four hundred eighty-eight".