25652253007 has 4 divisors (see below), whose sum is σ = 25655933520. Its totient is φ = 25648572496.

The previous prime is 25652252953. The next prime is 25652253013. The reversal of 25652253007 is 70035225652.

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

It is a cyclic number.

It is not a de Polignac number, because 25652253007 - 2¹¹ = 25652250959 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 (25652253047) 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, 1829782 + ... + 1843747.

It is an arithmetic number, because the mean of its divisors is an integer number (6413983380).

Almost surely, 2^25652253007 is an apocalyptic number.

25652253007 is a deficient number, since it is larger than the sum of its proper divisors (3680513).

25652253007 is an equidigital number, since it uses as much as digits as its factorization.

25652253007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680512.

The product of its (nonzero) digits is 126000, while the sum is 37.

Adding to 25652253007 its reverse (70035225652), we get a palindrome (95687478659).

The spelling of 25652253007 in words is "twenty-five billion, six hundred fifty-two million, two hundred fifty-three thousand, seven".