53297685 has 24 divisors (see below), whose sum is σ = 105580800. Its totient is φ = 24364512.

The previous prime is 53297681. The next prime is 53297707. The reversal of 53297685 is 58679235.

It is a happy number.

It is not a de Polignac number, because 53297685 - 2² = 53297681 is a prime.

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 53297685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53297681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84285 + ... + 84914.

It is an arithmetic number, because the mean of its divisors is an integer number (4399200).

Almost surely, 2^53297685 is an apocalyptic number.

It is an amenable number.

53297685 is a deficient number, since it is larger than the sum of its proper divisors (52283115).

53297685 is a wasteful number, since it uses less digits than its factorization.

53297685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169217 (or 169214 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 53297685 is about 7300.5263508873. The cubic root of 53297685 is about 376.3305269449.

The spelling of 53297685 in words is "fifty-three million, two hundred ninety-seven thousand, six hundred eighty-five".