205152025452 has 24 divisors (see below), whose sum is σ = 522205156032. Its totient is φ = 62167280400.

The previous prime is 205152025427. The next prime is 205152025457. The reversal of 205152025452 is 254520251502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (205152025457) 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, 777090874 + ... + 777091137.

It is an arithmetic number, because the mean of its divisors is an integer number (21758548168).

Almost surely, 2^205152025452 is an apocalyptic number.

205152025452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

205152025452 is an abundant number, since it is smaller than the sum of its proper divisors (317053130580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205152025452 is a wasteful number, since it uses less digits than its factorization.

205152025452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554182029 (or 1554182027 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 205152025452 its reverse (254520251502), we get a palindrome (459672276954).

The spelling of 205152025452 in words is "two hundred five billion, one hundred fifty-two million, twenty-five thousand, four hundred fifty-two".