25572366845 has 8 divisors (see below), whose sum is σ = 30724683360. Its totient is φ = 20432664720.

The previous prime is 25572366821. The next prime is 25572366847. The reversal of 25572366845 is 54866327552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25572366845 - 2²² = 25568172541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572366847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3149135 + ... + 3157244.

It is an arithmetic number, because the mean of its divisors is an integer number (3840585420).

Almost surely, 2^25572366845 is an apocalyptic number.

It is an amenable number.

25572366845 is a deficient number, since it is larger than the sum of its proper divisors (5152316515).

25572366845 is an equidigital number, since it uses as much as digits as its factorization.

25572366845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307195.

The product of its digits is 12096000, while the sum is 53.

The spelling of 25572366845 in words is "twenty-five billion, five hundred seventy-two million, three hundred sixty-six thousand, eight hundred forty-five".