25240553 has 8 divisors (see below), whose sum is σ = 27555528. Its totient is φ = 22978944.

The previous prime is 25240513. The next prime is 25240573. The reversal of 25240553 is 35504252.

It can be written as a sum of positive squares in 4 ways, for example, as 5053504 + 20187049 = 2248^2 + 4493^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25240553 - 2¹⁸ = 24978409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25240513) 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 7 ways as a sum of consecutive naturals, for example, 12350 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (3444441).

Almost surely, 2^25240553 is an apocalyptic number.

It is an amenable number.

25240553 is a deficient number, since it is larger than the sum of its proper divisors (2314975).

25240553 is a wasteful number, since it uses less digits than its factorization.

25240553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26683.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 25240553 is about 5023.9977109867. The cubic root of 25240553 is about 293.3366234422.

The spelling of 25240553 in words is "twenty-five million, two hundred forty thousand, five hundred fifty-three".