20224502 has 4 divisors (see below), whose sum is σ = 30336756. Its totient is φ = 10112250.

The previous prime is 20224483. The next prime is 20224507. The reversal of 20224502 is 20542202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20542202 = 2 ⋅10271101.

It is a super-2 number, since 2×20224502² = 818060962296008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056124 + ... + 5056127.

It is an arithmetic number, because the mean of its divisors is an integer number (7584189).

Almost surely, 2^20224502 is an apocalyptic number.

20224502 is a deficient number, since it is larger than the sum of its proper divisors (10112254).

20224502 is a wasteful number, since it uses less digits than its factorization.

20224502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10112253.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20224502 is about 4497.1659964916. The cubic root of 20224502 is about 272.4536385511.

Adding to 20224502 its reverse (20542202), we get a palindrome (40766704).

The spelling of 20224502 in words is "twenty million, two hundred twenty-four thousand, five hundred two".