25413528241 has 4 divisors (see below), whose sum is σ = 25438420084. Its totient is φ = 25388636400.

The previous prime is 25413528233. The next prime is 25413528251. The reversal of 25413528241 is 14282531452.

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 21801999025 + 3611529216 = 147655^2 + 60096^2 .

It is a cyclic number.

It is not a de Polignac number, because 25413528241 - 2³ = 25413528233 is a prime.

It is a super-3 number, since 3×25413528241³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25413528241.

It is not an unprimeable number, because it can be changed into a prime (25413528251) 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, 12444390 + ... + 12446431.

It is an arithmetic number, because the mean of its divisors is an integer number (6359605021).

Almost surely, 2^25413528241 is an apocalyptic number.

It is an amenable number.

25413528241 is a deficient number, since it is larger than the sum of its proper divisors (24891843).

25413528241 is a wasteful number, since it uses less digits than its factorization.

25413528241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24891842.

The product of its digits is 76800, while the sum is 37.

It can be divided in two parts, 254135 and 28241, that added together give a triangular number (282376 = T₇₅₁).

The spelling of 25413528241 in words is "twenty-five billion, four hundred thirteen million, five hundred twenty-eight thousand, two hundred forty-one".