56505153 has 4 divisors (see below), whose sum is σ = 75340208. Its totient is φ = 37670100.

The previous prime is 56505151. The next prime is 56505199. The reversal of 56505153 is 35150565.

56505153 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 not a de Polignac number, because 56505153 - 2¹ = 56505151 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 56505153.

It is not an unprimeable number, because it can be changed into a prime (56505151) 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, 9417523 + ... + 9417528.

It is an arithmetic number, because the mean of its divisors is an integer number (18835052).

Almost surely, 2^56505153 is an apocalyptic number.

It is an amenable number.

56505153 is a deficient number, since it is larger than the sum of its proper divisors (18835055).

56505153 is a wasteful number, since it uses less digits than its factorization.

56505153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18835054.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 56505153 is about 7516.9909538325. The cubic root of 56505153 is about 383.7331791727.

The spelling of 56505153 in words is "fifty-six million, five hundred five thousand, one hundred fifty-three".