42224501 has 4 divisors (see below), whose sum is σ = 46063104. Its totient is φ = 38385900.

The previous prime is 42224491. The next prime is 42224513. The reversal of 42224501 is 10542224.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-42224501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224591) 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, 1919285 + ... + 1919306.

It is an arithmetic number, because the mean of its divisors is an integer number (11515776).

Almost surely, 2^42224501 is an apocalyptic number.

It is an amenable number.

42224501 is a deficient number, since it is larger than the sum of its proper divisors (3838603).

42224501 is a wasteful number, since it uses less digits than its factorization.

42224501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838602.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42224501 is about 6498.0382424236. The cubic root of 42224501 is about 348.2209066650.

Adding to 42224501 its reverse (10542224), we get a palindrome (52766725).

The spelling of 42224501 in words is "forty-two million, two hundred twenty-four thousand, five hundred one".