25516023 has 8 divisors (see below), whose sum is σ = 36638448. Its totient is φ = 15702144.

The previous prime is 25516013. The next prime is 25516037. The reversal of 25516023 is 32061552.

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

It is not a de Polignac number, because 25516023 - 2⁵ = 25515991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25515984 and 25516002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25516003) 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, 327090 + ... + 327167.

It is an arithmetic number, because the mean of its divisors is an integer number (4579806).

Almost surely, 2^25516023 is an apocalyptic number.

25516023 is a deficient number, since it is larger than the sum of its proper divisors (11122425).

25516023 is a wasteful number, since it uses less digits than its factorization.

25516023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654273.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25516023 is about 5051.3387334448. The cubic root of 25516023 is about 294.3999023745.

Adding to 25516023 its reverse (32061552), we get a palindrome (57577575).

The spelling of 25516023 in words is "twenty-five million, five hundred sixteen thousand, twenty-three".