22512653 has 6 divisors (see below), whose sum is σ = 23534574. Its totient is φ = 21533336.

The previous prime is 22512643. The next prime is 22512661. The reversal of 22512653 is 35621522.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 64009 = 4738^2 + 253^2 .

It is not a de Polignac number, because 22512653 - 2¹⁸ = 22250509 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 (22512643) 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 5 ways as a sum of consecutive naturals, for example, 20750 + ... + 21807.

It is an arithmetic number, because the mean of its divisors is an integer number (3922429).

Almost surely, 2^22512653 is an apocalyptic number.

22512653 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22512653 is a deficient number, since it is larger than the sum of its proper divisors (1021921).

22512653 is an equidigital number, since it uses as much as digits as its factorization.

22512653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42603 (or 42580 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 22512653 is about 4744.7500461036. The cubic root of 22512653 is about 282.3637184314.

The spelling of 22512653 in words is "twenty-two million, five hundred twelve thousand, six hundred fifty-three".