25306426045 has 4 divisors (see below), whose sum is σ = 30367711260. Its totient is φ = 20245140832.

The previous prime is 25306426043. The next prime is 25306426063. The reversal of 25306426045 is 54062460352.

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 3018623364 + 22287802681 = 54942^2 + 149291^2 .

It is a cyclic number.

It is not a de Polignac number, because 25306426045 - 2¹ = 25306426043 is a prime.

It is a super-3 number, since 3×25306426045³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25306425995 and 25306426013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25306426043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530642600 + ... + 2530642609.

It is an arithmetic number, because the mean of its divisors is an integer number (7591927815).

Almost surely, 2^25306426045 is an apocalyptic number.

It is an amenable number.

25306426045 is a deficient number, since it is larger than the sum of its proper divisors (5061285215).

25306426045 is an equidigital number, since it uses as much as digits as its factorization.

25306426045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061285214.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 25306426045 its reverse (54062460352), we get a palindrome (79368886397).

The spelling of 25306426045 in words is "twenty-five billion, three hundred six million, four hundred twenty-six thousand, forty-five".