51356160 has 160 divisors (see below), whose sum is σ = 182666880. Its totient is φ = 13676544.

The previous prime is 51356159. The next prime is 51356197. The reversal of 51356160 is 6165315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

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

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, 68749 + ... + 69491.

It is an arithmetic number, because the mean of its divisors is an integer number (1141668).

Almost surely, 2^51356160 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 51356160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91333440).

51356160 is an abundant number, since it is smaller than the sum of its proper divisors (131310720).

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

51356160 is an equidigital number, since it uses as much as digits as its factorization.

51356160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51356160 is about 7166.3212319851. The cubic root of 51356160 is about 371.7042394220.

The spelling of 51356160 in words is "fifty-one million, three hundred fifty-six thousand, one hundred sixty".