205152225455 has 8 divisors (see below), whose sum is σ = 246563173152. Its totient is φ = 163868111968.

The previous prime is 205152225409. The next prime is 205152225463. The reversal of 205152225455 is 554522251502.

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

It is a cyclic number.

It is not a de Polignac number, because 205152225455 - 2¹⁴ = 205152209071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31704992 + ... + 31711461.

It is an arithmetic number, because the mean of its divisors is an integer number (30820396644).

Almost surely, 2^205152225455 is an apocalyptic number.

205152225455 is a deficient number, since it is larger than the sum of its proper divisors (41410947697).

205152225455 is an equidigital number, since it uses as much as digits as its factorization.

205152225455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63417105.

The product of its (nonzero) digits is 200000, while the sum is 38.

Adding to 205152225455 its reverse (554522251502), we get a palindrome (759674476957).

The spelling of 205152225455 in words is "two hundred five billion, one hundred fifty-two million, two hundred twenty-five thousand, four hundred fifty-five".