2455204540225 has 48 divisors (see below), whose sum is σ = 3218006088000. Its totient is φ = 1855448582400.

The previous prime is 2455204540193. The next prime is 2455204540237. The reversal of 2455204540225 is 5220454025542.

It is not a de Polignac number, because 2455204540225 - 2⁵ = 2455204540193 is a prime.

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, 8889511 + ... + 9161539.

It is an arithmetic number, because the mean of its divisors is an integer number (67041793500).

Almost surely, 2^{2455204540225} is an apocalyptic number.

2455204540225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2455204540225 is a deficient number, since it is larger than the sum of its proper divisors (762801547775).

2455204540225 is a wasteful number, since it uses less digits than its factorization.

2455204540225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272338 (or 272333 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 40.

Adding to 2455204540225 its reverse (5220454025542), we get a palindrome (7675658565767).

The spelling of 2455204540225 in words is "two trillion, four hundred fifty-five billion, two hundred four million, five hundred forty thousand, two hundred twenty-five".