201553232 has 30 divisors (see below), whose sum is σ = 408243402. Its totient is φ = 96390976.

The previous prime is 201553213. The next prime is 201553237. The reversal of 201553232 is 232355102.

201553232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 173080336 + 28472896 = 13156^2 + 5336^2 .

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 201553198 and 201553207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201553237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3443 + ... + 20370.

Almost surely, 2^201553232 is an apocalyptic number.

It is an amenable number.

201553232 is an abundant number, since it is smaller than the sum of its proper divisors (206690170).

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

201553232 is a wasteful number, since it uses less digits than its factorization.

201553232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23867 (or 23838 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 201553232 is about 14196.9444599886. The cubic root of 201553232 is about 586.3135380601.

The spelling of 201553232 in words is "two hundred one million, five hundred fifty-three thousand, two hundred thirty-two".