53523407 has 4 divisors (see below), whose sum is σ = 61169616. Its totient is φ = 45877200.

The previous prime is 53523401. The next prime is 53523427. The reversal of 53523407 is 70432535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53523407 - 2¹⁰ = 53522383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53523407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53523401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3823094 + ... + 3823107.

It is an arithmetic number, because the mean of its divisors is an integer number (15292404).

Almost surely, 2^53523407 is an apocalyptic number.

53523407 is a deficient number, since it is larger than the sum of its proper divisors (7646209).

53523407 is an equidigital number, since it uses as much as digits as its factorization.

53523407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7646208.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 53523407 is about 7315.9693137683. The cubic root of 53523407 is about 376.8610468081.

The spelling of 53523407 in words is "fifty-three million, five hundred twenty-three thousand, four hundred seven".