51396160 has 56 divisors (see below), whose sum is σ = 124440696. Its totient is φ = 20213760.

The previous prime is 51396133. The next prime is 51396179. The reversal of 51396160 is 6169315.

It can be written as a sum of positive squares in 4 ways, for example, as 1382976 + 50013184 = 1176^2 + 7072^2 .

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, 18204 + ... + 20836.

Almost surely, 2^51396160 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 51396160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62220348).

51396160 is an abundant number, since it is smaller than the sum of its proper divisors (73044536).

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

51396160 is a wasteful number, since it uses less digits than its factorization.

51396160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 51396160 is about 7169.1115209627. Note that the first 3 decimals coincide. The cubic root of 51396160 is about 371.8007180210.

The spelling of 51396160 in words is "fifty-one million, three hundred ninety-six thousand, one hundred sixty".