530261985 has 32 divisors (see below), whose sum is σ = 950573952. Its totient is φ = 250145280.

The previous prime is 530261971. The next prime is 530261993. The reversal of 530261985 is 589162035.

It is not a de Polignac number, because 530261985 - 2⁷ = 530261857 is a prime.

It is a super-2 number, since 2×530261985² = 562355545472280450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37324 + ... + 49533.

It is an arithmetic number, because the mean of its divisors is an integer number (29705436).

Almost surely, 2^530261985 is an apocalyptic number.

530261985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

530261985 is a deficient number, since it is larger than the sum of its proper divisors (420311967).

530261985 is a wasteful number, since it uses less digits than its factorization.

530261985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86913.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 530261985 is about 23027.4181140657. The cubic root of 530261985 is about 809.4005548100.

The spelling of 530261985 in words is "five hundred thirty million, two hundred sixty-one thousand, nine hundred eighty-five".