42503222 has 4 divisors (see below), whose sum is σ = 63754836. Its totient is φ = 21251610.

The previous prime is 42503203. The next prime is 42503233. The reversal of 42503222 is 22230524.

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

It is a junction number, because it is equal to n+sod(n) for n = 42503194 and 42503203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10625804 + ... + 10625807.

It is an arithmetic number, because the mean of its divisors is an integer number (15938709).

Almost surely, 2^42503222 is an apocalyptic number.

42503222 is a deficient number, since it is larger than the sum of its proper divisors (21251614).

42503222 is a wasteful number, since it uses less digits than its factorization.

42503222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21251613.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42503222 is about 6519.4495166387. The cubic root of 42503222 is about 348.9854209666.

Adding to 42503222 its reverse (22230524), we get a palindrome (64733746).

The spelling of 42503222 in words is "forty-two million, five hundred three thousand, two hundred twenty-two".