51888384 has 72 divisors (see below), whose sum is σ = 153463520. Its totient is φ = 17293824.

The previous prime is 51888383. The next prime is 51888407. The reversal of 51888384 is 48388815.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (51888383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3159 + ... + 10665.

Almost surely, 2^51888384 is an apocalyptic number.

51888384 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51888384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76731760).

51888384 is an abundant number, since it is smaller than the sum of its proper divisors (101575136).

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

51888384 is an equidigital number, since it uses as much as digits as its factorization.

51888384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532 (or 7512 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 51888384 is about 7203.3592163657. The cubic root of 51888384 is about 372.9838679901.

The spelling of 51888384 in words is "fifty-one million, eight hundred eighty-eight thousand, three hundred eighty-four".