22502091 has 8 divisors (see below), whose sum is σ = 30052864. Its totient is φ = 14976360.

The previous prime is 22502087. The next prime is 22502111. The reversal of 22502091 is 19020522.

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

It is not a de Polignac number, because 22502091 - 2² = 22502087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22502021) 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, 4051 + ... + 7836.

It is an arithmetic number, because the mean of its divisors is an integer number (3756608).

Almost surely, 2^22502091 is an apocalyptic number.

22502091 is a deficient number, since it is larger than the sum of its proper divisors (7550773).

22502091 is a wasteful number, since it uses less digits than its factorization.

22502091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12521.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 22502091 is about 4743.6368958848. The cubic root of 22502091 is about 282.3195537549.

The spelling of 22502091 in words is "twenty-two million, five hundred two thousand, ninety-one".