42545411 has 4 divisors (see below), whose sum is σ = 42595800. Its totient is φ = 42495024.

The previous prime is 42545383. The next prime is 42545429. The reversal of 42545411 is 11454524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42545411 is a prime.

It is a super-2 number, since 2×42545411² = 3620223994317842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42515411) 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, 23906 + ... + 25623.

It is an arithmetic number, because the mean of its divisors is an integer number (10648950).

Almost surely, 2^42545411 is an apocalyptic number.

42545411 is a deficient number, since it is larger than the sum of its proper divisors (50389).

42545411 is an equidigital number, since it uses as much as digits as its factorization.

42545411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50388.

The product of its digits is 3200, while the sum is 26.

The square root of 42545411 is about 6522.6843400551. The cubic root of 42545411 is about 349.1008512518.

Adding to 42545411 its reverse (11454524), we get a palindrome (53999935).

The spelling of 42545411 in words is "forty-two million, five hundred forty-five thousand, four hundred eleven".