22002502 has 4 divisors (see below), whose sum is σ = 33003756. Its totient is φ = 11001250.

The previous prime is 22002443. The next prime is 22002509. The reversal of 22002502 is 20520022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20520022 = 2 ⋅10260011.

It is a super-2 number, since 2×22002502² = 968220188520008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500624 + ... + 5500627.

It is an arithmetic number, because the mean of its divisors is an integer number (8250939).

Almost surely, 2^22002502 is an apocalyptic number.

22002502 is a deficient number, since it is larger than the sum of its proper divisors (11001254).

22002502 is a wasteful number, since it uses less digits than its factorization.

22002502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001253.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 22002502 is about 4690.6824663369. The cubic root of 22002502 is about 280.2145549393.

Adding to 22002502 its reverse (20520022), we get a palindrome (42522524).

It can be divided in two parts, 2 and 2002502, that multiplied together give a palindrome (4005004).

The spelling of 22002502 in words is "twenty-two million, two thousand, five hundred two".