25228605669 has 16 divisors (see below), whose sum is σ = 35429918400. Its totient is φ = 15924249216.

The previous prime is 25228605643. The next prime is 25228605673. The reversal of 25228605669 is 96650682252.

It is not a de Polignac number, because 25228605669 - 2²⁵ = 25195051237 is a prime.

It is a super-2 number, since 2×25228605669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25228605679) 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, 37464 + ... + 227729.

It is an arithmetic number, because the mean of its divisors is an integer number (2214369900).

Almost surely, 2^25228605669 is an apocalyptic number.

It is an amenable number.

25228605669 is a deficient number, since it is larger than the sum of its proper divisors (10201312731).

25228605669 is a wasteful number, since it uses less digits than its factorization.

25228605669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266884.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 25228605669 in words is "twenty-five billion, two hundred twenty-eight million, six hundred five thousand, six hundred sixty-nine".