25412125445 has 24 divisors (see below), whose sum is σ = 36142577784. Its totient is φ = 17096666496.

The previous prime is 25412125441. The next prime is 25412125447. The reversal of 25412125445 is 54452121452.

It can be written as a sum of positive squares in 4 ways, for example, as 2799785569 + 22612339876 = 52913^2 + 150374^2 .

It is not a de Polignac number, because 25412125445 - 2² = 25412125441 is a prime.

It is a super-2 number, since 2×25412125445² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25412125441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 965534 + ... + 991503.

It is an arithmetic number, because the mean of its divisors is an integer number (1505940741).

Almost surely, 2^25412125445 is an apocalyptic number.

It is an amenable number.

25412125445 is a deficient number, since it is larger than the sum of its proper divisors (10730452339).

25412125445 is a wasteful number, since it uses less digits than its factorization.

25412125445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957109 (or 1957102 counting only the distinct ones).

The product of its digits is 64000, while the sum is 35.

Adding to 25412125445 its reverse (54452121452), we get a palindrome (79864246897).

The spelling of 25412125445 in words is "twenty-five billion, four hundred twelve million, one hundred twenty-five thousand, four hundred forty-five".