531852785 has 4 divisors (see below), whose sum is σ = 638223348. Its totient is φ = 425482224.

The previous prime is 531852743. The next prime is 531852787. The reversal of 531852785 is 587258135.

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 372991969 + 158860816 = 19313^2 + 12604^2 .

It is a cyclic number.

It is not a de Polignac number, because 531852785 - 2²⁴ = 515075569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531852787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53185274 + ... + 53185283.

It is an arithmetic number, because the mean of its divisors is an integer number (159555837).

Almost surely, 2^531852785 is an apocalyptic number.

It is an amenable number.

531852785 is a deficient number, since it is larger than the sum of its proper divisors (106370563).

531852785 is a wasteful number, since it uses less digits than its factorization.

531852785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106370562.

The product of its digits is 336000, while the sum is 44.

The square root of 531852785 is about 23061.9336786836. The cubic root of 531852785 is about 810.2091544425.

The spelling of 531852785 in words is "five hundred thirty-one million, eight hundred fifty-two thousand, seven hundred eighty-five".