535559645 has 12 divisors (see below), whose sum is σ = 660518964. Its totient is φ = 416862720.

The previous prime is 535559641. The next prime is 535559663. The reversal of 535559645 is 546955535.

It can be written as a sum of positive squares in 6 ways, for example, as 225060004 + 310499641 = 15002^2 + 17621^2 .

It is not a de Polignac number, because 535559645 - 2² = 535559641 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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 535559645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535559641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32276 + ... + 45965.

It is an arithmetic number, because the mean of its divisors is an integer number (55043247).

Almost surely, 2^535559645 is an apocalyptic number.

It is an amenable number.

535559645 is a deficient number, since it is larger than the sum of its proper divisors (124959319).

535559645 is an equidigital number, since it uses as much as digits as its factorization.

535559645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78320 (or 78283 counting only the distinct ones).

The product of its digits is 2025000, while the sum is 47.

The square root of 535559645 is about 23142.1616319652. The cubic root of 535559645 is about 812.0871060308.

The spelling of 535559645 in words is "five hundred thirty-five million, five hundred fifty-nine thousand, six hundred forty-five".