25266149 has 4 divisors (see below), whose sum is σ = 25285260. Its totient is φ = 25247040.

The previous prime is 25266083. The next prime is 25266151. The reversal of 25266149 is 94166252.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3940225 + 21325924 = 1985^2 + 4618^2 .

It is a cyclic number.

It is not a de Polignac number, because 25266149 - 2¹² = 25262053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25266349) 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, 7412 + ... + 10269.

It is an arithmetic number, because the mean of its divisors is an integer number (6321315).

Almost surely, 2^25266149 is an apocalyptic number.

It is an amenable number.

25266149 is a deficient number, since it is larger than the sum of its proper divisors (19111).

25266149 is a wasteful number, since it uses less digits than its factorization.

25266149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19110.

The product of its digits is 25920, while the sum is 35.

The square root of 25266149 is about 5026.5444392744. The cubic root of 25266149 is about 293.4357457772.

The spelling of 25266149 in words is "twenty-five million, two hundred sixty-six thousand, one hundred forty-nine".