2500000252501 has 4 divisors (see below), whose sum is σ = 2500441253100. Its totient is φ = 2499559251904.

The previous prime is 2500000252499. The next prime is 2500000252507. The reversal of 2500000252501 is 1052520000052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1758978850225 + 741021402276 = 1326265^2 + 860826^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500000252501 - 2¹ = 2500000252499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500000252507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220491796 + ... + 220503133.

It is an arithmetic number, because the mean of its divisors is an integer number (625110313275).

Almost surely, 2^{2500000252501} is an apocalyptic number.

It is an amenable number.

2500000252501 is a deficient number, since it is larger than the sum of its proper divisors (441000599).

2500000252501 is an equidigital number, since it uses as much as digits as its factorization.

2500000252501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441000598.

The product of its (nonzero) digits is 1000, while the sum is 22.

Adding to 2500000252501 its reverse (1052520000052), we get a palindrome (3552520252553).

The spelling of 2500000252501 in words is "two trillion, five hundred billion, two hundred fifty-two thousand, five hundred one".