1223515555025 has 12 divisors (see below), whose sum is σ = 1517195570352. Its totient is φ = 978789036240.

The previous prime is 1223515555019. The next prime is 1223515555033. The reversal of 1223515555025 is 5205555153221.

It is not a de Polignac number, because 1223515555025 - 2²⁰ = 1223514506449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522194 + ... + 1649156.

It is an arithmetic number, because the mean of its divisors is an integer number (126432964196).

Almost surely, 2^{1223515555025} is an apocalyptic number.

It is an amenable number.

1223515555025 is a deficient number, since it is larger than the sum of its proper divisors (293680015327).

1223515555025 is a wasteful number, since it uses less digits than its factorization.

1223515555025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170400 (or 1170395 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 1223515555025 in words is "one trillion, two hundred twenty-three billion, five hundred fifteen million, five hundred fifty-five thousand, twenty-five".