204252302555 has 16 divisors (see below), whose sum is σ = 281107271424. Its totient is φ = 139563807840.

The previous prime is 204252302509. The next prime is 204252302587. The reversal of 204252302555 is 555203252402.

It is not a de Polignac number, because 204252302555 - 2²⁰ = 204251253979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10300661 + ... + 10320470.

It is an arithmetic number, because the mean of its divisors is an integer number (17569204464).

Almost surely, 2^204252302555 is an apocalyptic number.

204252302555 is a deficient number, since it is larger than the sum of its proper divisors (76854968869).

204252302555 is a wasteful number, since it uses less digits than its factorization.

204252302555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20621426.

The product of its (nonzero) digits is 120000, while the sum is 35.

Adding to 204252302555 its reverse (555203252402), we get a palindrome (759455554957).

The spelling of 204252302555 in words is "two hundred four billion, two hundred fifty-two million, three hundred two thousand, five hundred fifty-five".