2501443442225 has 24 divisors (see below), whose sum is σ = 3817587533760. Its totient is φ = 1583331232320.

The previous prime is 2501443442207. The next prime is 2501443442273. The reversal of 2501443442225 is 5222443441052.

It is not a de Polignac number, because 2501443442225 - 2⁸ = 2501443441969 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549765515 + ... + 549770064.

It is an arithmetic number, because the mean of its divisors is an integer number (159066147240).

Almost surely, 2^{2501443442225} is an apocalyptic number.

2501443442225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2501443442225 is a deficient number, since it is larger than the sum of its proper divisors (1316144091535).

2501443442225 is a wasteful number, since it uses less digits than its factorization.

2501443442225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099535609 (or 1099535604 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 2501443442225 its reverse (5222443441052), we get a palindrome (7723886883277).

The spelling of 2501443442225 in words is "two trillion, five hundred one billion, four hundred forty-three million, four hundred forty-two thousand, two hundred twenty-five".