51306160 has 20 divisors (see below), whose sum is σ = 119287008. Its totient is φ = 20522432.

The previous prime is 51306149. The next prime is 51306193. The reversal of 51306160 is 6160315.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320584 + ... + 320743.

Almost surely, 2^51306160 is an apocalyptic number.

It is an amenable number.

51306160 is an abundant number, since it is smaller than the sum of its proper divisors (67980848).

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

51306160 is a wasteful number, since it uses less digits than its factorization.

51306160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641340 (or 641334 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 51306160 is about 7162.8318422255. The cubic root of 51306160 is about 371.5835706992.

Adding to 51306160 its reverse (6160315), we get a palindrome (57466475).

The spelling of 51306160 in words is "fifty-one million, three hundred six thousand, one hundred sixty".