25204552232413 has 2 divisors, whose sum is σ = 25204552232414. Its totient is φ = 25204552232412.

The previous prime is 25204552232383. The next prime is 25204552232437. The reversal of 25204552232413 is 31423225540252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15779977649604 + 9424574582809 = 3972402^2 + 3069947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25204552232413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25204552232813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12602276116206 + 12602276116207.

It is an arithmetic number, because the mean of its divisors is an integer number (12602276116207).

Almost surely, 2^{25204552232413} is an apocalyptic number.

It is an amenable number.

25204552232413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25204552232413 is an equidigital number, since it uses as much as digits as its factorization.

25204552232413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 25204552232413 its reverse (31423225540252), we get a palindrome (56627777772665).

The spelling of 25204552232413 in words is "twenty-five trillion, two hundred four billion, five hundred fifty-two million, two hundred thirty-two thousand, four hundred thirteen".