52155145 has 32 divisors (see below), whose sum is σ = 75829248. Its totient is φ = 33663168.

The previous prime is 52155143. The next prime is 52155199. The reversal of 52155145 is 54155125.

52155145 = T₄₅₆₅ + T₄₅₆₆ + ... + T₄₅₆₉.

52155145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52155145 - 2¹ = 52155143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52155143) 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 31 ways as a sum of consecutive naturals, for example, 53452 + ... + 54418.

It is an arithmetic number, because the mean of its divisors is an integer number (2369664).

Almost surely, 2^52155145 is an apocalyptic number.

It is an amenable number.

52155145 is a deficient number, since it is larger than the sum of its proper divisors (23674103).

52155145 is a wasteful number, since it uses less digits than its factorization.

52155145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

The product of its digits is 5000, while the sum is 28.

The square root of 52155145 is about 7221.8519093097. The cubic root of 52155145 is about 373.6219525340.

The spelling of 52155145 in words is "fifty-two million, one hundred fifty-five thousand, one hundred forty-five".