25525141645 has 16 divisors (see below), whose sum is σ = 31142100528. Its totient is φ = 20079037440.

The previous prime is 25525141601. The next prime is 25525141651. The reversal of 25525141645 is 54614152552.

It can be written as a sum of positive squares in 8 ways, for example, as 11489052969 + 14036088676 = 107187^2 + 118474^2 .

It is not a de Polignac number, because 25525141645 - 2¹⁷ = 25525010573 is a prime.

It is a super-3 number, since 3×25525141645³ (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 = 25525141598 and 25525141607.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1116267 + ... + 1138903.

It is an arithmetic number, because the mean of its divisors is an integer number (1946381283).

Almost surely, 2^25525141645 is an apocalyptic number.

It is an amenable number.

25525141645 is a deficient number, since it is larger than the sum of its proper divisors (5616958883).

25525141645 is a wasteful number, since it uses less digits than its factorization.

25525141645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26400.

The product of its digits is 240000, while the sum is 40.

The spelling of 25525141645 in words is "twenty-five billion, five hundred twenty-five million, one hundred forty-one thousand, six hundred forty-five".