2505612416 has 16 divisors (see below), whose sum is σ = 4991649990. Its totient is φ = 1252806144.

The previous prime is 2505612359. The next prime is 2505612419. The reversal of 2505612416 is 6142165052.

It can be written as a sum of positive squares in only one way, i.e., 2162622016 + 342990400 = 46504^2 + 18520^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (2505612419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9787421 + ... + 9787676.

Almost surely, 2^2505612416 is an apocalyptic number.

It is an amenable number.

2505612416 is a deficient number, since it is larger than the sum of its proper divisors (2486037574).

2505612416 is an equidigital number, since it uses as much as digits as its factorization.

2505612416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19575111 (or 19575099 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2505612416 is about 50056.0926960944. The cubic root of 2505612416 is about 1358.2236786168.

Adding to 2505612416 its reverse (6142165052), we get a palindrome (8647777468).

The spelling of 2505612416 in words is "two billion, five hundred five million, six hundred twelve thousand, four hundred sixteen".