2521454225 has 6 divisors (see below), whose sum is σ = 3126603270. Its totient is φ = 2017163360.

The previous prime is 2521454197. The next prime is 2521454227. The reversal of 2521454225 is 5224541252.

It can be written as a sum of positive squares in 3 ways, for example, as 9840769 + 2511613456 = 3137^2 + 50116^2 .

It is not a de Polignac number, because 2521454225 - 2¹⁰ = 2521453201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2521454191 and 2521454200.

It is not an unprimeable number, because it can be changed into a prime (2521454227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50429060 + ... + 50429109.

It is an arithmetic number, because the mean of its divisors is an integer number (521100545).

Almost surely, 2^2521454225 is an apocalyptic number.

2521454225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2521454225 is a deficient number, since it is larger than the sum of its proper divisors (605149045).

2521454225 is a wasteful number, since it uses less digits than its factorization.

2521454225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100858179 (or 100858174 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 2521454225 is about 50214.0839307061. The cubic root of 2521454225 is about 1361.0801368983.

Adding to 2521454225 its reverse (5224541252), we get a palindrome (7745995477).

The spelling of 2521454225 in words is "two billion, five hundred twenty-one million, four hundred fifty-four thousand, two hundred twenty-five".