51183360 has 144 divisors (see below), whose sum is σ = 181752480. Its totient is φ = 13639680.

The previous prime is 51183323. The next prime is 51183367. The reversal of 51183360 is 6338115.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51183367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33820 + ... + 35300.

It is an arithmetic number, because the mean of its divisors is an integer number (1262170).

Almost surely, 2^51183360 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 51183360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90876240).

51183360 is an abundant number, since it is smaller than the sum of its proper divisors (130569120).

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

51183360 is a wasteful number, since it uses less digits than its factorization.

51183360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51183360 is about 7154.2546781618. The cubic root of 51183360 is about 371.2868752271.

The spelling of 51183360 in words is "fifty-one million, one hundred eighty-three thousand, three hundred sixty".