225740761439 has 4 divisors (see below), whose sum is σ = 225822347424. Its totient is φ = 225659175456.

The previous prime is 225740761427. The next prime is 225740761453. The reversal of 225740761439 is 934167047522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934167047522 = 2 ⋅467083523761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225740761439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225740761639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40788842 + ... + 40794375.

It is an arithmetic number, because the mean of its divisors is an integer number (56455586856).

Almost surely, 2^225740761439 is an apocalyptic number.

225740761439 is a deficient number, since it is larger than the sum of its proper divisors (81585985).

225740761439 is an equidigital number, since it uses as much as digits as its factorization.

225740761439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81585984.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 225740761439 in words is "two hundred twenty-five billion, seven hundred forty million, seven hundred sixty-one thousand, four hundred thirty-nine".