52206523 has 4 divisors (see below), whose sum is σ = 52341120. Its totient is φ = 52071928.

The previous prime is 52206493. The next prime is 52206551. The reversal of 52206523 is 32560225.

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 52206523 - 2¹³ = 52198331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52206823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66715 + ... + 67492.

It is an arithmetic number, because the mean of its divisors is an integer number (13085280).

Almost surely, 2^52206523 is an apocalyptic number.

52206523 is a deficient number, since it is larger than the sum of its proper divisors (134597).

52206523 is a wasteful number, since it uses less digits than its factorization.

52206523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134596.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 52206523 is about 7225.4081545612. The cubic root of 52206523 is about 373.7445971859.

Adding to 52206523 its reverse (32560225), we get a palindrome (84766748).

The spelling of 52206523 in words is "fifty-two million, two hundred six thousand, five hundred twenty-three".