25223027056155 has 40 divisors (see below), whose sum is σ = 45215473720032. Its totient is φ = 13452024557952.

The previous prime is 25223027056133. The next prime is 25223027056211. The reversal of 25223027056155 is 55165072032252.

25223027056155 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 3 + 0 + 27 + 0 + 5 + 615 + 5 = 666.

It is not a de Polignac number, because 25223027056155 - 2¹³ = 25223027047963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25223027056155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21701767 + ... + 22834463.

Almost surely, 2^{25223027056155} is an apocalyptic number.

25223027056155 is a deficient number, since it is larger than the sum of its proper divisors (19992446663877).

25223027056155 is a wasteful number, since it uses less digits than its factorization.

25223027056155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187697 (or 1187688 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 25223027056155 in words is "twenty-five trillion, two hundred twenty-three billion, twenty-seven million, fifty-six thousand, one hundred fifty-five".