25798045 has 48 divisors (see below), whose sum is σ = 40037760. Its totient is φ = 15534720.

The previous prime is 25798043. The next prime is 25798049. The reversal of 25798045 is 54089752.

It is not a de Polignac number, because 25798045 - 2¹ = 25798043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25797989 and 25798007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25798043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 437226 + ... + 437284.

It is an arithmetic number, because the mean of its divisors is an integer number (834120).

Almost surely, 2^25798045 is an apocalyptic number.

It is an amenable number.

25798045 is a deficient number, since it is larger than the sum of its proper divisors (14239715).

25798045 is a wasteful number, since it uses less digits than its factorization.

25798045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 25798045 is about 5079.1775909098. The cubic root of 25798045 is about 295.4805726256.

The spelling of 25798045 in words is "twenty-five million, seven hundred ninety-eight thousand, forty-five".