25266449 has 8 divisors (see below), whose sum is σ = 27945960. Its totient is φ = 22692096.

The previous prime is 25266431. The next prime is 25266487. The reversal of 25266449 is 94466252.

It can be written as a sum of positive squares in 4 ways, for example, as 336400 + 24930049 = 580^2 + 4993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25266449 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 25784 + ... + 26745.

It is an arithmetic number, because the mean of its divisors is an integer number (3493245).

Almost surely, 2^25266449 is an apocalyptic number.

It is an amenable number.

25266449 is a deficient number, since it is larger than the sum of its proper divisors (2679511).

25266449 is a wasteful number, since it uses less digits than its factorization.

25266449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52579.

The product of its digits is 103680, while the sum is 38.

The square root of 25266449 is about 5026.5742807602. The cubic root of 25266449 is about 293.4369071516.

The spelling of 25266449 in words is "twenty-five million, two hundred sixty-six thousand, four hundred forty-nine".