534535521 has 16 divisors (see below), whose sum is σ = 776790336. Its totient is φ = 324979776.

The previous prime is 534535501. The next prime is 534535543. The reversal of 534535521 is 125535435.

It is a happy number.

It is not a de Polignac number, because 534535521 - 2¹⁷ = 534404449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (534535501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79330 + ... + 85803.

It is an arithmetic number, because the mean of its divisors is an integer number (48549396).

Almost surely, 2^534535521 is an apocalyptic number.

It is an amenable number.

534535521 is a deficient number, since it is larger than the sum of its proper divisors (242254815).

534535521 is a wasteful number, since it uses less digits than its factorization.

534535521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165232.

The product of its digits is 45000, while the sum is 33.

The square root of 534535521 is about 23120.0242430669. The cubic root of 534535521 is about 811.5691378378.

The spelling of 534535521 in words is "five hundred thirty-four million, five hundred thirty-five thousand, five hundred twenty-one".