25228311000 has 64 divisors (see below), whose sum is σ = 78712339680. Its totient is φ = 6727548800.

The previous prime is 25228310999. The next prime is 25228311089. The reversal of 25228311000 is 11382252.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4201719 + ... + 4207718.

Almost surely, 2^25228311000 is an apocalyptic number.

25228311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25228311000 is an abundant number, since it is smaller than the sum of its proper divisors (53484028680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25228311000 is a wasteful number, since it uses less digits than its factorization.

25228311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409461 (or 8409447 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 25228311000 its reverse (11382252), we get a palindrome (25239693252).

The spelling of 25228311000 in words is "twenty-five billion, two hundred twenty-eight million, three hundred eleven thousand".