52855145 has 8 divisors (see below), whose sum is σ = 72487104. Its totient is φ = 36243504.

The previous prime is 52855123. The next prime is 52855157. The reversal of 52855145 is 54155825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52855145 - 2¹² = 52851049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1510147 = 52855145 / (5 + 2 + 8 + 5 + 5 + 1 + 4 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755039 + ... + 755108.

It is an arithmetic number, because the mean of its divisors is an integer number (9060888).

Almost surely, 2^52855145 is an apocalyptic number.

It is an amenable number.

52855145 is a deficient number, since it is larger than the sum of its proper divisors (19631959).

52855145 is a wasteful number, since it uses less digits than its factorization.

52855145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510159.

The product of its digits is 40000, while the sum is 35.

The square root of 52855145 is about 7270.1544000110. The cubic root of 52855145 is about 375.2860513731.

The spelling of 52855145 in words is "fifty-two million, eight hundred fifty-five thousand, one hundred forty-five".