42189553 has 4 divisors (see below), whose sum is σ = 48216640. Its totient is φ = 36162468.

The previous prime is 42189517. The next prime is 42189559. The reversal of 42189553 is 35598124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42189553 - 2²¹ = 40092401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42189559) 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, 3013533 + ... + 3013546.

It is an arithmetic number, because the mean of its divisors is an integer number (12054160).

Almost surely, 2^42189553 is an apocalyptic number.

It is an amenable number.

42189553 is a deficient number, since it is larger than the sum of its proper divisors (6027087).

42189553 is an equidigital number, since it uses as much as digits as its factorization.

42189553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027086.

The product of its digits is 43200, while the sum is 37.

The square root of 42189553 is about 6495.3485664743. The cubic root of 42189553 is about 348.1248093520.

The spelling of 42189553 in words is "forty-two million, one hundred eighty-nine thousand, five hundred fifty-three".