52122155 has 4 divisors (see below), whose sum is σ = 62546592. Its totient is φ = 41697720.

The previous prime is 52122143. The next prime is 52122157. The reversal of 52122155 is 55122125.

52122155 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.

It is not a de Polignac number, because 52122155 - 2⁴ = 52122139 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 52122155.

It is not an unprimeable number, because it can be changed into a prime (52122157) 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, 5212211 + ... + 5212220.

It is an arithmetic number, because the mean of its divisors is an integer number (15636648).

Almost surely, 2^52122155 is an apocalyptic number.

52122155 is a deficient number, since it is larger than the sum of its proper divisors (10424437).

52122155 is a wasteful number, since it uses less digits than its factorization.

52122155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10424436.

The product of its digits is 1000, while the sum is 23.

The square root of 52122155 is about 7219.5675078221. The cubic root of 52122155 is about 373.5431594896.

The spelling of 52122155 in words is "fifty-two million, one hundred twenty-two thousand, one hundred fifty-five".