25252513 has 8 divisors (see below), whose sum is σ = 29667456. Its totient is φ = 21190800.

The previous prime is 25252457. The next prime is 25252529. The reversal of 25252513 is 31525252.

It is a happy number.

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 25252513 - 2¹³ = 25244321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25252013) 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, 88153 + ... + 88438.

It is an arithmetic number, because the mean of its divisors is an integer number (3708432).

Almost surely, 2^25252513 is an apocalyptic number.

It is an amenable number.

25252513 is a deficient number, since it is larger than the sum of its proper divisors (4414943).

25252513 is a wasteful number, since it uses less digits than its factorization.

25252513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176615.

The product of its digits is 3000, while the sum is 25.

The square root of 25252513 is about 5025.1878571850. The cubic root of 25252513 is about 293.3829477315.

Adding to 25252513 its reverse (31525252), we get a palindrome (56777765).

The spelling of 25252513 in words is "twenty-five million, two hundred fifty-two thousand, five hundred thirteen".