52138526 has 16 divisors (see below), whose sum is σ = 85434480. Its totient is φ = 23666880.

The previous prime is 52138517. The next prime is 52138531. The reversal of 52138526 is 62583125.

52138526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52138492 and 52138501.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23330 + ... + 25466.

It is an arithmetic number, because the mean of its divisors is an integer number (5339655).

Almost surely, 2^52138526 is an apocalyptic number.

52138526 is a deficient number, since it is larger than the sum of its proper divisors (33295954).

52138526 is a wasteful number, since it uses less digits than its factorization.

52138526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259.

The product of its digits is 14400, while the sum is 32.

The square root of 52138526 is about 7220.7012124862. The cubic root of 52138526 is about 373.5822640056.

The spelling of 52138526 in words is "fifty-two million, one hundred thirty-eight thousand, five hundred twenty-six".