25253513 has 8 divisors (see below), whose sum is σ = 25938528. Its totient is φ = 24573024.

The previous prime is 25253509. The next prime is 25253537. The reversal of 25253513 is 31535252.

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 25253513 - 2² = 25253509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25253213) 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, 12245 + ... + 14157.

It is an arithmetic number, because the mean of its divisors is an integer number (3242316).

Almost surely, 2^25253513 is an apocalyptic number.

It is an amenable number.

25253513 is a deficient number, since it is larger than the sum of its proper divisors (685015).

25253513 is a wasteful number, since it uses less digits than its factorization.

25253513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263.

The product of its digits is 4500, while the sum is 26.

The square root of 25253513 is about 5025.2873549679. The cubic root of 25253513 is about 293.3868203372.

Adding to 25253513 its reverse (31535252), we get a palindrome (56788765).

The spelling of 25253513 in words is "twenty-five million, two hundred fifty-three thousand, five hundred thirteen".