25456215223 has 8 divisors (see below), whose sum is σ = 26323421696. Its totient is φ = 24591886200.

The previous prime is 25456215203. The next prime is 25456215227. The reversal of 25456215223 is 32251265452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25456215223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25456215227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701361 + ... + 736762.

It is an arithmetic number, because the mean of its divisors is an integer number (3290427712).

Almost surely, 2^25456215223 is an apocalyptic number.

25456215223 is a deficient number, since it is larger than the sum of its proper divisors (867206473).

25456215223 is a wasteful number, since it uses less digits than its factorization.

25456215223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438725.

The product of its digits is 144000, while the sum is 37.

The spelling of 25456215223 in words is "twenty-five billion, four hundred fifty-six million, two hundred fifteen thousand, two hundred twenty-three".