53442111 has 8 divisors (see below), whose sum is σ = 71318704. Its totient is φ = 35596800.

The previous prime is 53442083. The next prime is 53442119. The reversal of 53442111 is 11124435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53442111 - 2⁹ = 53441599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53442119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3490 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (8914838).

Almost surely, 2^53442111 is an apocalyptic number.

53442111 is a deficient number, since it is larger than the sum of its proper divisors (17876593).

53442111 is a wasteful number, since it uses less digits than its factorization.

53442111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15641.

The product of its digits is 480, while the sum is 21.

The square root of 53442111 is about 7310.4111375490. The cubic root of 53442111 is about 376.6701470254.

Adding to 53442111 its reverse (11124435), we get a palindrome (64566546).

The spelling of 53442111 in words is "fifty-three million, four hundred forty-two thousand, one hundred eleven".