2500001245555 has 16 divisors (see below), whose sum is σ = 3272992186464. Its totient is φ = 1818036455680.

The previous prime is 2500001245541. The next prime is 2500001245571. The reversal of 2500001245555 is 5555421000052.

It is not a de Polignac number, because 2500001245555 - 2²¹ = 2499999148403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2500001245555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136104 + ... + 2508133.

It is an arithmetic number, because the mean of its divisors is an integer number (204562011654).

Almost surely, 2^{2500001245555} is an apocalyptic number.

2500001245555 is a deficient number, since it is larger than the sum of its proper divisors (772990940909).

2500001245555 is a wasteful number, since it uses less digits than its factorization.

2500001245555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656726.

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 2500001245555 in words is "two trillion, five hundred billion, one million, two hundred forty-five thousand, five hundred fifty-five".