536253661 has 6 divisors (see below), whose sum is σ = 569653850. Its totient is φ = 504709056.

The previous prime is 536253643. The next prime is 536253667. The reversal of 536253661 is 166352635.

It can be written as a sum of positive squares in 3 ways, for example, as 86601636 + 449652025 = 9306^2 + 21205^2 .

It is not a de Polignac number, because 536253661 - 2⁹ = 536253149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 536253661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536253667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 927486 + ... + 928063.

Almost surely, 2^536253661 is an apocalyptic number.

It is an amenable number.

536253661 is a deficient number, since it is larger than the sum of its proper divisors (33400189).

536253661 is a wasteful number, since it uses less digits than its factorization.

536253661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855583 (or 1855566 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The square root of 536253661 is about 23157.1514008092. The cubic root of 536253661 is about 812.4377412176.

The spelling of 536253661 in words is "five hundred thirty-six million, two hundred fifty-three thousand, six hundred sixty-one".