25022011155 has 32 divisors (see below), whose sum is σ = 41031966528. Its totient is φ = 13013145600.

The previous prime is 25022011111. The next prime is 25022011163. The reversal of 25022011155 is 55111022052.

It is not a de Polignac number, because 25022011155 - 2⁸ = 25022010899 is a prime.

It is a super-2 number, since 2×25022011155² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1393897 + ... + 1411733.

It is an arithmetic number, because the mean of its divisors is an integer number (1282248954).

Almost surely, 2^25022011155 is an apocalyptic number.

25022011155 is a deficient number, since it is larger than the sum of its proper divisors (16009955373).

25022011155 is a wasteful number, since it uses less digits than its factorization.

25022011155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20167.

The product of its (nonzero) digits is 1000, while the sum is 24.

The spelling of 25022011155 in words is "twenty-five billion, twenty-two million, eleven thousand, one hundred fifty-five".