25617223023 has 32 divisors (see below), whose sum is σ = 41384079360. Its totient is φ = 13783322880.

The previous prime is 25617223001. The next prime is 25617223031. The reversal of 25617223023 is 32032271652.

It is not a de Polignac number, because 25617223023 - 2⁵ = 25617222991 is a prime.

It is a super-3 number, since 3×25617223023³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25617223123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 507678 + ... + 555851.

It is an arithmetic number, because the mean of its divisors is an integer number (1293252480).

Almost surely, 2^25617223023 is an apocalyptic number.

25617223023 is a deficient number, since it is larger than the sum of its proper divisors (15766856337).

25617223023 is a wasteful number, since it uses less digits than its factorization.

25617223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063607.

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 25617223023 its reverse (32032271652), we get a palindrome (57649494675).

The spelling of 25617223023 in words is "twenty-five billion, six hundred seventeen million, two hundred twenty-three thousand, twenty-three".