25443045 has 32 divisors (see below), whose sum is σ = 45484800. Its totient is φ = 13493952.

The previous prime is 25443029. The next prime is 25443059. The reversal of 25443045 is 54034452.

It is not a de Polignac number, because 25443045 - 2⁴ = 25443029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30504 + ... + 31326.

It is an arithmetic number, because the mean of its divisors is an integer number (1421400).

Almost surely, 2^25443045 is an apocalyptic number.

It is an amenable number.

25443045 is a deficient number, since it is larger than the sum of its proper divisors (20041755).

25443045 is a wasteful number, since it uses less digits than its factorization.

25443045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 25443045 is about 5044.1099313952. The cubic root of 25443045 is about 294.1189647666.

Adding to 25443045 its reverse (54034452), we get a palindrome (79477497).

The spelling of 25443045 in words is "twenty-five million, four hundred forty-three thousand, forty-five".