25225549 has 4 divisors (see below), whose sum is σ = 26322336. Its totient is φ = 24128764.

The previous prime is 25225523. The next prime is 25225553. The reversal of 25225549 is 94552252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25225549 - 2¹¹ = 25223501 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 (25225049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548359 + ... + 548404.

It is an arithmetic number, because the mean of its divisors is an integer number (6580584).

Almost surely, 2^25225549 is an apocalyptic number.

It is an amenable number.

25225549 is a deficient number, since it is larger than the sum of its proper divisors (1096787).

25225549 is a wasteful number, since it uses less digits than its factorization.

25225549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096786.

The product of its digits is 36000, while the sum is 34.

The square root of 25225549 is about 5022.5042558469. The cubic root of 25225549 is about 293.2784882253.

The spelling of 25225549 in words is "twenty-five million, two hundred twenty-five thousand, five hundred forty-nine".