581872253 has 4 divisors (see below), whose sum is σ = 583323708. Its totient is φ = 580420800.

The previous prime is 581872231. The next prime is 581872271. The reversal of 581872253 is 352278185.

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 575904004 + 5968249 = 23998^2 + 2443^2 .

It is a cyclic number.

It is not a de Polignac number, because 581872253 - 2⁶ = 581872189 is a prime.

It is a super-2 number, since 2×581872253² = 677150637622592018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 581872253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581872223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725126 + ... + 725927.

It is an arithmetic number, because the mean of its divisors is an integer number (145830927).

Almost surely, 2^581872253 is an apocalyptic number.

It is an amenable number.

581872253 is a deficient number, since it is larger than the sum of its proper divisors (1451455).

581872253 is a wasteful number, since it uses less digits than its factorization.

581872253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451454.

The product of its digits is 134400, while the sum is 41.

The square root of 581872253 is about 24122.0283765690. The cubic root of 581872253 is about 834.8514696307.

The spelling of 581872253 in words is "five hundred eighty-one million, eight hundred seventy-two thousand, two hundred fifty-three".