51560460 has 144 divisors (see below), whose sum is σ = 180590592. Its totient is φ = 11664000.

The previous prime is 51560449. The next prime is 51560477. The reversal of 51560460 is 6406515.

It is a happy number.

51560460 is a `hidden beast` number, since 51 + 5 + 604 + 6 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190125 + ... + 190395.

Almost surely, 2^51560460 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 51560460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90295296).

51560460 is an abundant number, since it is smaller than the sum of its proper divisors (129030132).

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

51560460 is a wasteful number, since it uses less digits than its factorization.

51560460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 51560460 is about 7180.5612594003. The cubic root of 51560460 is about 372.1964796269.

Adding to 51560460 its reverse (6406515), we get a palindrome (57966975).

The spelling of 51560460 in words is "fifty-one million, five hundred sixty thousand, four hundred sixty".