53499285 has 80 divisors (see below), whose sum is σ = 111234816. Its totient is φ = 24095232.

The previous prime is 53499263. The next prime is 53499317. The reversal of 53499285 is 58299435.

53499285 is a `hidden beast` number, since 534 + 99 + 28 + 5 = 666.

It is not a de Polignac number, because 53499285 - 2⁷ = 53499157 is a prime.

It is a super-2 number, since 2×53499285² = 5724346991022450, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53499285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 320272 + ... + 320438.

Almost surely, 2^53499285 is an apocalyptic number.

It is an amenable number.

53499285 is an abundant number, since it is smaller than the sum of its proper divisors (57735531).

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

53499285 is a wasteful number, since it uses less digits than its factorization.

53499285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 295 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 53499285 is about 7314.3205426068. The cubic root of 53499285 is about 376.8044235555.

The spelling of 53499285 in words is "fifty-three million, four hundred ninety-nine thousand, two hundred eighty-five".