205152025439 has 8 divisors (see below), whose sum is σ = 205476585600. Its totient is φ = 204827665536.

The previous prime is 205152025427. The next prime is 205152025457. The reversal of 205152025439 is 934520251502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205152025439 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 (205152325439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070962 + ... + 2167760.

It is an arithmetic number, because the mean of its divisors is an integer number (25684573200).

Almost surely, 2^205152025439 is an apocalyptic number.

205152025439 is a deficient number, since it is larger than the sum of its proper divisors (324560161).

205152025439 is an equidigital number, since it uses as much as digits as its factorization.

205152025439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100129.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 205152025439 in words is "two hundred five billion, one hundred fifty-two million, twenty-five thousand, four hundred thirty-nine".