52533540 has 36 divisors (see below), whose sum is σ = 159352284. Its totient is φ = 14008896.

The previous prime is 52533527. The next prime is 52533571. The reversal of 52533540 is 4533525.

It can be written as a sum of positive squares in 2 ways, for example, as 18870336 + 33663204 = 4344^2 + 5802^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145747 + ... + 146106.

Almost surely, 2^52533540 is an apocalyptic number.

It is an amenable number.

52533540 is an abundant number, since it is smaller than the sum of its proper divisors (106818744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52533540 is a wasteful number, since it uses less digits than its factorization.

52533540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291868 (or 291863 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 52533540 is about 7248.0024834433. The cubic root of 52533540 is about 374.5233410467.

The spelling of 52533540 in words is "fifty-two million, five hundred thirty-three thousand, five hundred forty".