51204160 has 56 divisors (see below), whose sum is σ = 139354560. Its totient is φ = 17554944.

The previous prime is 51204151. The next prime is 51204173. The reversal of 51204160 is 6140215.

It is a tau number, because it is divible by the number of its divisors (56).

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, 9190 + ... + 13669.

Almost surely, 2^51204160 is an apocalyptic number.

It is an amenable number.

51204160 is an abundant number, since it is smaller than the sum of its proper divisors (88150400).

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

51204160 is a wasteful number, since it uses less digits than its factorization.

51204160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22883 (or 22873 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51204160 is about 7155.7082109320. The cubic root of 51204160 is about 371.3371631925.

Adding to 51204160 its reverse (6140215), we get a palindrome (57344375).

The spelling of 51204160 in words is "fifty-one million, two hundred four thousand, one hundred sixty".