201553201 has 4 divisors (see below), whose sum is σ = 201600000. Its totient is φ = 201506404.

The previous prime is 201553199. The next prime is 201553213. The reversal of 201553201 is 102355102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201553201 - 2¹ = 201553199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201553291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16201 + ... + 25798.

It is an arithmetic number, because the mean of its divisors is an integer number (50400000).

Almost surely, 2^201553201 is an apocalyptic number.

It is an amenable number.

201553201 is a deficient number, since it is larger than the sum of its proper divisors (46799).

201553201 is an equidigital number, since it uses as much as digits as its factorization.

201553201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46798.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 201553201 is about 14196.9433682043. The cubic root of 201553201 is about 586.3135080006.

The spelling of 201553201 in words is "two hundred one million, five hundred fifty-three thousand, two hundred one".