2752538581 has 4 divisors (see below), whose sum is σ = 2964272332. Its totient is φ = 2540804832.

The previous prime is 2752538573. The next prime is 2752538587. The reversal of 2752538581 is 1858352572.

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

It can be written as a sum of positive squares in 2 ways, for example, as 917787025 + 1834751556 = 30295^2 + 42834^2 .

It is a cyclic number.

It is not a de Polignac number, because 2752538581 - 2³ = 2752538573 is a prime.

It is a super-2 number, since 2×2752538581² = 15152937279786987122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2752538587) 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, 105866856 + ... + 105866881.

It is an arithmetic number, because the mean of its divisors is an integer number (741068083).

Almost surely, 2^2752538581 is an apocalyptic number.

It is an amenable number.

2752538581 is a deficient number, since it is larger than the sum of its proper divisors (211733751).

2752538581 is a wasteful number, since it uses less digits than its factorization.

2752538581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211733750.

The product of its digits is 672000, while the sum is 46.

The square root of 2752538581 is about 52464.6412453187. The cubic root of 2752538581 is about 1401.4506360033.

The spelling of 2752538581 in words is "two billion, seven hundred fifty-two million, five hundred thirty-eight thousand, five hundred eighty-one".