52409111 has 16 divisors (see below), whose sum is σ = 56548800. Its totient is φ = 48449280.

The previous prime is 52409101. The next prime is 52409117. The reversal of 52409111 is 11190425.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52409111 - 2⁶ = 52409047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52409117) 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, 140321 + ... + 140693.

It is an arithmetic number, because the mean of its divisors is an integer number (3534300).

Almost surely, 2^52409111 is an apocalyptic number.

52409111 is a deficient number, since it is larger than the sum of its proper divisors (4139689).

52409111 is a wasteful number, since it uses less digits than its factorization.

52409111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 52409111 is about 7239.4137193560. The cubic root of 52409111 is about 374.2274132375.

Adding to 52409111 its reverse (11190425), we get a palindrome (63599536).

The spelling of 52409111 in words is "fifty-two million, four hundred nine thousand, one hundred eleven".