25223536315 has 4 divisors (see below), whose sum is σ = 30268243584. Its totient is φ = 20178829048.

The previous prime is 25223536313. The next prime is 25223536321. The reversal of 25223536315 is 51363532252.

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

It is a cyclic number.

It is not a de Polignac number, because 25223536315 - 2¹ = 25223536313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25223536313) 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 3 ways as a sum of consecutive naturals, for example, 2522353627 + ... + 2522353636.

It is an arithmetic number, because the mean of its divisors is an integer number (7567060896).

Almost surely, 2^25223536315 is an apocalyptic number.

25223536315 is a deficient number, since it is larger than the sum of its proper divisors (5044707269).

25223536315 is an equidigital number, since it uses as much as digits as its factorization.

25223536315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044707268.

The product of its digits is 162000, while the sum is 37.

The spelling of 25223536315 in words is "twenty-five billion, two hundred twenty-three million, five hundred thirty-six thousand, three hundred fifteen".