201055061 has 4 divisors (see below), whose sum is σ = 201631500. Its totient is φ = 200478624.

The previous prime is 201055051. The next prime is 201055069. The reversal of 201055061 is 160550102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160550102 = 2 ⋅80275051.

It can be written as a sum of positive squares in 2 ways, for example, as 68574961 + 132480100 = 8281^2 + 11510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201055061 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 (201055069) 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, 287696 + ... + 288393.

It is an arithmetic number, because the mean of its divisors is an integer number (50407875).

Almost surely, 2^201055061 is an apocalyptic number.

It is an amenable number.

201055061 is a deficient number, since it is larger than the sum of its proper divisors (576439).

201055061 is an equidigital number, since it uses as much as digits as its factorization.

201055061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576438.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 201055061 is about 14179.3885975383. The cubic root of 201055061 is about 585.8300836825.

The spelling of 201055061 in words is "two hundred one million, fifty-five thousand, sixty-one".