25222050413 has 4 divisors (see below), whose sum is σ = 28825200480. Its totient is φ = 21618900348.

The previous prime is 25222050397. The next prime is 25222050421. The reversal of 25222050413 is 31405022252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25222050413 - 2⁴ = 25222050397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222050463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801575023 + ... + 1801575036.

It is an arithmetic number, because the mean of its divisors is an integer number (7206300120).

Almost surely, 2^25222050413 is an apocalyptic number.

It is an amenable number.

25222050413 is a deficient number, since it is larger than the sum of its proper divisors (3603150067).

25222050413 is an equidigital number, since it uses as much as digits as its factorization.

25222050413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603150066.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 25222050413 its reverse (31405022252), we get a palindrome (56627072665).

The spelling of 25222050413 in words is "twenty-five billion, two hundred twenty-two million, fifty thousand, four hundred thirteen".