22520651 has 4 divisors (see below), whose sum is σ = 22889904. Its totient is φ = 22151400.

The previous prime is 22520633. The next prime is 22520669. The reversal of 22520651 is 15602522.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22520633) and next prime (22520669).

It is a cyclic number.

It is not a de Polignac number, because 22520651 - 2¹⁴ = 22504267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22520671) 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, 184535 + ... + 184656.

It is an arithmetic number, because the mean of its divisors is an integer number (5722476).

Almost surely, 2^22520651 is an apocalyptic number.

22520651 is a deficient number, since it is larger than the sum of its proper divisors (369253).

22520651 is an equidigital number, since it uses as much as digits as its factorization.

22520651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369252.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 22520651 is about 4745.5927975333. The cubic root of 22520651 is about 282.3971526315.

The spelling of 22520651 in words is "twenty-two million, five hundred twenty thousand, six hundred fifty-one".