539512465 has 4 divisors (see below), whose sum is σ = 647414964. Its totient is φ = 431609968.

The previous prime is 539512453. The next prime is 539512507. The reversal of 539512465 is 564215935.

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 237899776 + 301612689 = 15424^2 + 17367^2 .

It is a cyclic number.

It is not a de Polignac number, because 539512465 - 2²¹ = 537415313 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53951242 + ... + 53951251.

It is an arithmetic number, because the mean of its divisors is an integer number (161853741).

Almost surely, 2^539512465 is an apocalyptic number.

It is an amenable number.

539512465 is a deficient number, since it is larger than the sum of its proper divisors (107902499).

539512465 is a wasteful number, since it uses less digits than its factorization.

539512465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107902498.

The product of its digits is 162000, while the sum is 40.

The square root of 539512465 is about 23227.4076254756. The cubic root of 539512465 is about 814.0801420047.

The spelling of 539512465 in words is "five hundred thirty-nine million, five hundred twelve thousand, four hundred sixty-five".