25511256775222 has 16 divisors (see below), whose sum is σ = 38609406908352. Its totient is φ = 12641477143680.

The previous prime is 25511256775219. The next prime is 25511256775223. The reversal of 25511256775222 is 22257765211552.

It is a self number, because there is not a number n which added to its sum of digits gives 25511256775222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25511256775223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3410229 + ... + 7915312.

It is an arithmetic number, because the mean of its divisors is an integer number (2413087931772).

Almost surely, 2^{25511256775222} is an apocalyptic number.

25511256775222 is a deficient number, since it is larger than the sum of its proper divisors (13098150133130).

25511256775222 is a wasteful number, since it uses less digits than its factorization.

25511256775222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11335623.

The product of its digits is 5880000, while the sum is 52.

The spelling of 25511256775222 in words is "twenty-five trillion, five hundred eleven billion, two hundred fifty-six million, seven hundred seventy-five thousand, two hundred twenty-two".