725205221032441 has 4 divisors (see below), whose sum is σ = 725205277577872. Its totient is φ = 725205164487012.

The previous prime is 725205221032381. The next prime is 725205221032511. The reversal of 725205221032441 is 144230122502527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 725205221032441 - 2¹⁵ = 725205220999673 is a prime.

It is a super-2 number, since 2×725205221032441² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725205221032394 and 725205221032403.

It is not an unprimeable number, because it can be changed into a prime (725205221032241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220566 + ... + 38103808.

It is an arithmetic number, because the mean of its divisors is an integer number (181301319394468).

Almost surely, 2^{725205221032441} is an apocalyptic number.

It is an amenable number.

725205221032441 is a deficient number, since it is larger than the sum of its proper divisors (56545431).

725205221032441 is a wasteful number, since it uses less digits than its factorization.

725205221032441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56545430.

The product of its (nonzero) digits is 268800, while the sum is 40.

Adding to 725205221032441 its reverse (144230122502527), we get a palindrome (869435343534968).

The spelling of 725205221032441 in words is "seven hundred twenty-five trillion, two hundred five billion, two hundred twenty-one million, thirty-two thousand, four hundred forty-one".