535057561 has 4 divisors (see below), whose sum is σ = 535130212. Its totient is φ = 534984912.

The previous prime is 535057559. The next prime is 535057577. The reversal of 535057561 is 165750535.

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 525097225 + 9960336 = 22915^2 + 3156^2 .

It is a cyclic number.

It is not a de Polignac number, because 535057561 - 2¹ = 535057559 is a prime.

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 535057561.

It is not an unprimeable number, because it can be changed into a prime (535057261) 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, 23850 + ... + 40483.

It is an arithmetic number, because the mean of its divisors is an integer number (133782553).

Almost surely, 2^535057561 is an apocalyptic number.

It is an amenable number.

535057561 is a deficient number, since it is larger than the sum of its proper divisors (72651).

535057561 is an equidigital number, since it uses as much as digits as its factorization.

535057561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72650.

The product of its (nonzero) digits is 78750, while the sum is 37.

The square root of 535057561 is about 23131.3112684949. The cubic root of 535057561 is about 811.8332510653.

The spelling of 535057561 in words is "five hundred thirty-five million, fifty-seven thousand, five hundred sixty-one".