22025597 has 4 divisors (see below), whose sum is σ = 24027936. Its totient is φ = 20023260.

The previous prime is 22025567. The next prime is 22025603. The reversal of 22025597 is 79552022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22025597 - 2⁶ = 22025533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001153 + ... + 1001174.

It is an arithmetic number, because the mean of its divisors is an integer number (6006984).

Almost surely, 2^22025597 is an apocalyptic number.

It is an amenable number.

22025597 is a deficient number, since it is larger than the sum of its proper divisors (2002339).

22025597 is a wasteful number, since it uses less digits than its factorization.

22025597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002338.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 22025597 is about 4693.1436159572. The cubic root of 22025597 is about 280.3125633713.

It can be divided in two parts, 22025 and 597, that added together give a palindrome (22622).

The spelling of 22025597 in words is "twenty-two million, twenty-five thousand, five hundred ninety-seven".