22025531 has 8 divisors (see below), whose sum is σ = 24803328. Its totient is φ = 19377000.

The previous prime is 22025527. The next prime is 22025533. The reversal of 22025531 is 13552022.

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

It is a cyclic number.

It is not a de Polignac number, because 22025531 - 2² = 22025527 is a prime.

It is a super-2 number, since 2×22025531² = 970248031663922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22025533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31955 + ... + 32636.

It is an arithmetic number, because the mean of its divisors is an integer number (3100416).

Almost surely, 2^22025531 is an apocalyptic number.

22025531 is a deficient number, since it is larger than the sum of its proper divisors (2777797).

22025531 is a wasteful number, since it uses less digits than its factorization.

22025531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64633.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 22025531 is about 4693.1365844177. The cubic root of 22025531 is about 280.3122833843.

Adding to 22025531 its reverse (13552022), we get a palindrome (35577553).

The spelling of 22025531 in words is "twenty-two million, twenty-five thousand, five hundred thirty-one".