53582985 has 32 divisors (see below), whose sum is σ = 99406080. Its totient is φ = 27333504.

The previous prime is 53582959. The next prime is 53582989. The reversal of 53582985 is 58928535.

53582985 is a `hidden beast` number, since 5 + 358 + 298 + 5 = 666.

It is not a de Polignac number, because 53582985 - 2⁷ = 53582857 is a prime.

It is a super-2 number, since 2×53582985² = 5742272563020450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 53582985.

It is not an unprimeable number, because it can be changed into a prime (53582989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5524 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (3106440).

Almost surely, 2^53582985 is an apocalyptic number.

It is an amenable number.

53582985 is a deficient number, since it is larger than the sum of its proper divisors (45823095).

53582985 is a wasteful number, since it uses less digits than its factorization.

53582985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294 (or 17288 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 53582985 is about 7320.0399589073. The cubic root of 53582985 is about 377.0008255393. Note that the first 3 decimals are identical.

The spelling of 53582985 in words is "fifty-three million, five hundred eighty-two thousand, nine hundred eighty-five".