25552632445 has 4 divisors (see below), whose sum is σ = 30663158940. Its totient is φ = 20442105952.

The previous prime is 25552632433. The next prime is 25552632503. The reversal of 25552632445 is 54423625552.

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 10217772889 + 15334859556 = 101083^2 + 123834^2 .

It is a cyclic number.

It is not a de Polignac number, because 25552632445 - 2⁹ = 25552631933 is a prime.

It is a congruent 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, 2555263240 + ... + 2555263249.

It is an arithmetic number, because the mean of its divisors is an integer number (7665789735).

Almost surely, 2^25552632445 is an apocalyptic number.

It is an amenable number.

25552632445 is a deficient number, since it is larger than the sum of its proper divisors (5110526495).

25552632445 is an equidigital number, since it uses as much as digits as its factorization.

25552632445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110526494.

The product of its digits is 1440000, while the sum is 43.

The spelling of 25552632445 in words is "twenty-five billion, five hundred fifty-two million, six hundred thirty-two thousand, four hundred forty-five".