25222414513 has 2 divisors, whose sum is σ = 25222414514. Its totient is φ = 25222414512.

The previous prime is 25222414501. The next prime is 25222414543. The reversal of 25222414513 is 31541422252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23848007184 + 1374407329 = 154428^2 + 37073^2 .

It is a cyclic number.

It is not a de Polignac number, because 25222414513 - 2¹⁷ = 25222283441 is a prime.

It is not a weakly prime, because it can be changed into another prime (25222414543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611207256 + 12611207257.

It is an arithmetic number, because the mean of its divisors is an integer number (12611207257).

Almost surely, 2^25222414513 is an apocalyptic number.

It is an amenable number.

25222414513 is a deficient number, since it is larger than the sum of its proper divisors (1).

25222414513 is an equidigital number, since it uses as much as digits as its factorization.

25222414513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 31.

Adding to 25222414513 its reverse (31541422252), we get a palindrome (56763836765).

The spelling of 25222414513 in words is "twenty-five billion, two hundred twenty-two million, four hundred fourteen thousand, five hundred thirteen".