25422419069 has 2 divisors, whose sum is σ = 25422419070. Its totient is φ = 25422419068.

The previous prime is 25422419053. The next prime is 25422419093. The reversal of 25422419069 is 96091422452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22759343044 + 2663076025 = 150862^2 + 51605^2 .

It is a cyclic number.

It is not a de Polignac number, because 25422419069 - 2⁴ = 25422419053 is a prime.

It is a super-2 number, since 2×25422419069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25422419969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12711209534 + 12711209535.

It is an arithmetic number, because the mean of its divisors is an integer number (12711209535).

Almost surely, 2^25422419069 is an apocalyptic number.

It is an amenable number.

25422419069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25422419069 is an equidigital number, since it uses as much as digits as its factorization.

25422419069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 25422419069 in words is "twenty-five billion, four hundred twenty-two million, four hundred nineteen thousand, sixty-nine".