25006469797 has 4 divisors (see below), whose sum is σ = 25012304460. Its totient is φ = 25000635136.

The previous prime is 25006469779. The next prime is 25006469801. The reversal of 25006469797 is 79796460052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22084634881 + 2921834916 = 148609^2 + 54054^2 .

It is a cyclic number.

It is not a de Polignac number, because 25006469797 - 2¹¹ = 25006467749 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 (25006469197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2910898 + ... + 2919475.

It is an arithmetic number, because the mean of its divisors is an integer number (6253076115).

Almost surely, 2^25006469797 is an apocalyptic number.

It is an amenable number.

25006469797 is a deficient number, since it is larger than the sum of its proper divisors (5834663).

25006469797 is an equidigital number, since it uses as much as digits as its factorization.

25006469797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834662.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 25006469797 in words is "twenty-five billion, six million, four hundred sixty-nine thousand, seven hundred ninety-seven".