25545423 has 4 divisors (see below), whose sum is σ = 34060568. Its totient is φ = 17030280.

The previous prime is 25545409. The next prime is 25545437. The reversal of 25545423 is 32454552.

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

It is an interprime number because it is at equal distance from previous prime (25545409) and next prime (25545437).

It is not a de Polignac number, because 25545423 - 2⁵ = 25545391 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 (25545463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4257568 + ... + 4257573.

It is an arithmetic number, because the mean of its divisors is an integer number (8515142).

Almost surely, 2^25545423 is an apocalyptic number.

25545423 is a deficient number, since it is larger than the sum of its proper divisors (8515145).

25545423 is an equidigital number, since it uses as much as digits as its factorization.

25545423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515144.

The product of its digits is 24000, while the sum is 30.

The square root of 25545423 is about 5054.2480152838. The cubic root of 25545423 is about 294.5129298497.

Adding to 25545423 its reverse (32454552), we get a palindrome (57999975).

The spelling of 25545423 in words is "twenty-five million, five hundred forty-five thousand, four hundred twenty-three".