201325553 has 16 divisors (see below), whose sum is σ = 240063936. Its totient is φ = 166415040.

The previous prime is 201325549. The next prime is 201325567. The reversal of 201325553 is 355523102.

It is not a de Polignac number, because 201325553 - 2² = 201325549 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201325573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926 + ... + 20087.

It is an arithmetic number, because the mean of its divisors is an integer number (15003996).

Almost surely, 2^201325553 is an apocalyptic number.

It is an amenable number.

201325553 is a deficient number, since it is larger than the sum of its proper divisors (38738383).

201325553 is a wasteful number, since it uses less digits than its factorization.

201325553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21104.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 201325553 is about 14188.9236025852. The cubic root of 201325553 is about 586.0926839542.

Adding to 201325553 its reverse (355523102), we get a palindrome (556848655).

The spelling of 201325553 in words is "two hundred one million, three hundred twenty-five thousand, five hundred fifty-three".