52211523 has 16 divisors (see below), whose sum is σ = 85680896. Its totient is φ = 27540000.

The previous prime is 52211521. The next prime is 52211531. The reversal of 52211523 is 32511225.

It is not a de Polignac number, because 52211523 - 2¹ = 52211521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 52211523.

It is not an unprimeable number, because it can be changed into a prime (52211521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95353 + ... + 95898.

It is an arithmetic number, because the mean of its divisors is an integer number (5355056).

Almost surely, 2^52211523 is an apocalyptic number.

52211523 is a deficient number, since it is larger than the sum of its proper divisors (33469373).

52211523 is a wasteful number, since it uses less digits than its factorization.

52211523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191274.

The product of its digits is 600, while the sum is 21.

The square root of 52211523 is about 7225.7541474921. The cubic root of 52211523 is about 373.7565284110.

Adding to 52211523 its reverse (32511225), we get a palindrome (84722748).

It can be divided in two parts, 52 and 211523, that added together give a triangular number (211575 = T₆₅₀).

The spelling of 52211523 in words is "fifty-two million, two hundred eleven thousand, five hundred twenty-three".