52158507 has 4 divisors (see below), whose sum is σ = 69544680. Its totient is φ = 34772336.

The previous prime is 52158487. The next prime is 52158551. The reversal of 52158507 is 70585125.

It is a happy number.

52158507 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 a cyclic number.

It is not a de Polignac number, because 52158507 - 2⁸ = 52158251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52158107) 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, 8693082 + ... + 8693087.

It is an arithmetic number, because the mean of its divisors is an integer number (17386170).

Almost surely, 2^52158507 is an apocalyptic number.

52158507 is a deficient number, since it is larger than the sum of its proper divisors (17386173).

52158507 is a wasteful number, since it uses less digits than its factorization.

52158507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17386172.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 52158507 is about 7222.0846713397. The cubic root of 52158507 is about 373.6299804413.

It can be divided in two parts, 5 and 2158507, that added together give a palindrome (2158512).

The spelling of 52158507 in words is "fifty-two million, one hundred fifty-eight thousand, five hundred seven".