536549069 has 10 divisors (see below), whose sum is σ = 625939470. Its totient is φ = 459897144.

The previous prime is 536549063. The next prime is 536549077. The reversal of 536549069 is 960945635.

It can be written as a sum of positive squares in only one way, i.e., 409536169 + 127012900 = 20237^2 + 11270^2 .

It is a de Polignac number, because none of the positive numbers 2^k-536549069 is a prime.

It is a super-3 number, since 3×536549069³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536549063) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 109334 + ... + 114135.

It is an arithmetic number, because the mean of its divisors is an integer number (62593947).

Almost surely, 2^536549069 is an apocalyptic number.

It is an amenable number.

536549069 is a deficient number, since it is larger than the sum of its proper divisors (89390401).

536549069 is an frugal number, since it uses more digits than its factorization.

536549069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223497 (or 223476 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 47.

The square root of 536549069 is about 23163.5288546456. The cubic root of 536549069 is about 812.5868973411.

The spelling of 536549069 in words is "five hundred thirty-six million, five hundred forty-nine thousand, sixty-nine".