201553113247 has 4 divisors (see below), whose sum is σ = 201562101216. Its totient is φ = 201544125280.

The previous prime is 201553113241. The next prime is 201553113287. The reversal of 201553113247 is 742311355102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201553113247 - 2³⁵ = 167193374879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201553113241) 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, 4460263 + ... + 4505224.

It is an arithmetic number, because the mean of its divisors is an integer number (50390525304).

Almost surely, 2^201553113247 is an apocalyptic number.

201553113247 is a deficient number, since it is larger than the sum of its proper divisors (8987969).

201553113247 is an equidigital number, since it uses as much as digits as its factorization.

201553113247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987968.

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 201553113247 its reverse (742311355102), we get a palindrome (943864468349).

The spelling of 201553113247 in words is "two hundred one billion, five hundred fifty-three million, one hundred thirteen thousand, two hundred forty-seven".