22587409025 has 12 divisors (see below), whose sum is σ = 28011126444. Its totient is φ = 18068160000.

The previous prime is 22587408971. The next prime is 22587409027. The reversal of 22587409025 is 52090478522.

It can be written as a sum of positive squares in 6 ways, for example, as 339001744 + 22248407281 = 18412^2 + 149159^2 .

It is not a de Polignac number, because 22587409025 - 2¹⁶ = 22587343489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22587409027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256745 + ... + 333305.

It is an arithmetic number, because the mean of its divisors is an integer number (2334260537).

Almost surely, 2^22587409025 is an apocalyptic number.

22587409025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22587409025 is a deficient number, since it is larger than the sum of its proper divisors (5423717419).

22587409025 is a wasteful number, since it uses less digits than its factorization.

22587409025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88372 (or 88367 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 22587409025 in words is "twenty-two billion, five hundred eighty-seven million, four hundred nine thousand, twenty-five".