53523697 has 4 divisors (see below), whose sum is σ = 53554176. Its totient is φ = 53493220.

The previous prime is 53523689. The next prime is 53523707. The reversal of 53523697 is 79632535.

53523697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53523697 - 2³ = 53523689 is a prime.

It is a super-2 number, since 2×53523697² = 5729572281095618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53523607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12433 + ... + 16174.

It is an arithmetic number, because the mean of its divisors is an integer number (13388544).

Almost surely, 2^53523697 is an apocalyptic number.

It is an amenable number.

53523697 is a deficient number, since it is larger than the sum of its proper divisors (30479).

53523697 is a wasteful number, since it uses less digits than its factorization.

53523697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30478.

The product of its digits is 170100, while the sum is 40.

The square root of 53523697 is about 7315.9891333982. The cubic root of 53523697 is about 376.8617274418.

The spelling of 53523697 in words is "fifty-three million, five hundred twenty-three thousand, six hundred ninety-seven".