23525225305 has 4 divisors (see below), whose sum is σ = 28230270372. Its totient is φ = 18820180240.

The previous prime is 23525225299. The next prime is 23525225341. The reversal of 23525225305 is 50352252532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8015262784 + 15509962521 = 89528^2 + 124539^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23525225305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352522526 + ... + 2352522535.

It is an arithmetic number, because the mean of its divisors is an integer number (7057567593).

Almost surely, 2^23525225305 is an apocalyptic number.

It is an amenable number.

23525225305 is a deficient number, since it is larger than the sum of its proper divisors (4705045067).

23525225305 is an equidigital number, since it uses as much as digits as its factorization.

23525225305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705045066.

The product of its (nonzero) digits is 90000, while the sum is 34.

Adding to 23525225305 its reverse (50352252532), we get a palindrome (73877477837).

The spelling of 23525225305 in words is "twenty-three billion, five hundred twenty-five million, two hundred twenty-five thousand, three hundred five".