25234513 has 2 divisors, whose sum is σ = 25234514. Its totient is φ = 25234512.

The previous prime is 25234501. The next prime is 25234523. The reversal of 25234513 is 31543252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25080064 + 154449 = 5008^2 + 393^2 .

It is a cyclic number.

It is not a de Polignac number, because 25234513 - 2¹³ = 25226321 is a prime.

It is not a weakly prime, because it can be changed into another prime (25234523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12617256 + 12617257.

It is an arithmetic number, because the mean of its divisors is an integer number (12617257).

Almost surely, 2^25234513 is an apocalyptic number.

It is an amenable number.

25234513 is a deficient number, since it is larger than the sum of its proper divisors (1).

25234513 is an equidigital number, since it uses as much as digits as its factorization.

25234513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 25234513 is about 5023.3965600976. The cubic root of 25234513 is about 293.3132233401.

Adding to 25234513 its reverse (31543252), we get a palindrome (56777765).

The spelling of 25234513 in words is "twenty-five million, two hundred thirty-four thousand, five hundred thirteen".