52188555 has 32 divisors (see below), whose sum is σ = 89316864. Its totient is φ = 25929216.

The previous prime is 52188547. The next prime is 52188557. The reversal of 52188555 is 55588125.

52188555 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 52188555 - 2³ = 52188547 is a prime.

It is a super-3 number, since 3×52188555³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52188557) 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, 25272 + ... + 27258.

It is an arithmetic number, because the mean of its divisors is an integer number (2791152).

Almost surely, 2^52188555 is an apocalyptic number.

52188555 is a deficient number, since it is larger than the sum of its proper divisors (37128309).

52188555 is a wasteful number, since it uses less digits than its factorization.

52188555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its digits is 80000, while the sum is 39.

The square root of 52188555 is about 7224.1646575919. The cubic root of 52188555 is about 373.7017148467.

The spelling of 52188555 in words is "fifty-two million, one hundred eighty-eight thousand, five hundred fifty-five".