25227685955 has 16 divisors (see below), whose sum is σ = 31958426880. Its totient is φ = 19064804832.

The previous prime is 25227685949. The next prime is 25227685957. The reversal of 25227685955 is 55958672252.

It is a cyclic number.

It is not a de Polignac number, because 25227685955 - 2⁴ = 25227685939 is a prime.

It is a super-2 number, since 2×25227685955² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25227685955.

It is not an unprimeable number, because it can be changed into a prime (25227685957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349679 + ... + 415608.

It is an arithmetic number, because the mean of its divisors is an integer number (1997401680).

Almost surely, 2^25227685955 is an apocalyptic number.

25227685955 is a deficient number, since it is larger than the sum of its proper divisors (6730740925).

25227685955 is a wasteful number, since it uses less digits than its factorization.

25227685955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765658.

The product of its digits is 15120000, while the sum is 56.

The spelling of 25227685955 in words is "twenty-five billion, two hundred twenty-seven million, six hundred eighty-five thousand, nine hundred fifty-five".