42501223 has 8 divisors (see below), whose sum is σ = 42940800. Its totient is φ = 42064248.

The previous prime is 42501209. The next prime is 42501253. The reversal of 42501223 is 32210524.

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

It is a cyclic number.

It is not a de Polignac number, because 42501223 - 2¹⁷ = 42370151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42501223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501253) 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, 50238 + ... + 51076.

It is an arithmetic number, because the mean of its divisors is an integer number (5367600).

Almost surely, 2^42501223 is an apocalyptic number.

42501223 is a deficient number, since it is larger than the sum of its proper divisors (439577).

42501223 is a wasteful number, since it uses less digits than its factorization.

42501223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42501223 is about 6519.2962043460. The cubic root of 42501223 is about 348.9799497516.

Adding to 42501223 its reverse (32210524), we get a palindrome (74711747).

It can be divided in two parts, 42501 and 223, that added together give a palindrome (42724).

The spelling of 42501223 in words is "forty-two million, five hundred one thousand, two hundred twenty-three".