25152013 has 2 divisors, whose sum is σ = 25152014. Its totient is φ = 25152012.

The previous prime is 25151933. The next prime is 25152031. The reversal of 25152013 is 31025152.

Together with next prime (25152031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19377604 + 5774409 = 4402^2 + 2403^2 .

It is a cyclic number.

It is not a de Polignac number, because 25152013 - 2²¹ = 23054861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25132013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12576006 + 12576007.

It is an arithmetic number, because the mean of its divisors is an integer number (12576007).

Almost surely, 2^25152013 is an apocalyptic number.

It is an amenable number.

25152013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25152013 is an equidigital number, since it uses as much as digits as its factorization.

25152013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25152013 is about 5015.1782620362. The cubic root of 25152013 is about 292.9932282639.

Adding to 25152013 its reverse (31025152), we get a palindrome (56177165).

The spelling of 25152013 in words is "twenty-five million, one hundred fifty-two thousand, thirteen".