25435322545 has 8 divisors (see below), whose sum is σ = 30524608296. Its totient is φ = 20346777216.

The previous prime is 25435322543. The next prime is 25435322557. The reversal of 25435322545 is 54522353452.

It can be written as a sum of positive squares in 4 ways, for example, as 332405824 + 25102916721 = 18232^2 + 158439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25435322545 - 2¹ = 25435322543 is a prime.

It is a super-3 number, since 3×25435322545³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25435322498 and 25435322507.

It is not an unprimeable number, because it can be changed into a prime (25435322543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106492 + ... + 249421.

It is an arithmetic number, because the mean of its divisors is an integer number (3815576037).

Almost surely, 2^25435322545 is an apocalyptic number.

It is an amenable number.

25435322545 is a deficient number, since it is larger than the sum of its proper divisors (5089285751).

25435322545 is a wasteful number, since it uses less digits than its factorization.

25435322545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370211.

The product of its digits is 720000, while the sum is 40.

Adding to 25435322545 its reverse (54522353452), we get a palindrome (79957675997).

The spelling of 25435322545 in words is "twenty-five billion, four hundred thirty-five million, three hundred twenty-two thousand, five hundred forty-five".