22402501 has 16 divisors (see below), whose sum is σ = 26429760. Its totient is φ = 18766080.

The previous prime is 22402469. The next prime is 22402519. The reversal of 22402501 is 10520422.

It is a cyclic number.

It is not a de Polignac number, because 22402501 - 2⁵ = 22402469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6285 + ... + 9181.

It is an arithmetic number, because the mean of its divisors is an integer number (1651860).

Almost surely, 2^22402501 is an apocalyptic number.

It is an amenable number.

22402501 is a deficient number, since it is larger than the sum of its proper divisors (4027259).

22402501 is a wasteful number, since it uses less digits than its factorization.

22402501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22402501 is about 4733.1280354539. The cubic root of 22402501 is about 281.9024401387.

Adding to 22402501 its reverse (10520422), we get a palindrome (32922923).

The spelling of 22402501 in words is "twenty-two million, four hundred two thousand, five hundred one".