25262013 has 16 divisors (see below), whose sum is σ = 39038976. Its totient is φ = 14231280.

The previous prime is 25262011. The next prime is 25262021. The reversal of 25262013 is 31026252.

It is not a de Polignac number, because 25262013 - 2¹ = 25262011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25262011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6981 + ... + 9962.

It is an arithmetic number, because the mean of its divisors is an integer number (2439936).

Almost surely, 2^25262013 is an apocalyptic number.

It is an amenable number.

25262013 is a deficient number, since it is larger than the sum of its proper divisors (13776963).

25262013 is a wasteful number, since it uses less digits than its factorization.

25262013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17024.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 25262013 is about 5026.1330065966. The cubic root of 25262013 is about 293.4197333584.

Adding to 25262013 its reverse (31026252), we get a palindrome (56288265).

The spelling of 25262013 in words is "twenty-five million, two hundred sixty-two thousand, thirteen".