22529501 has 2 divisors, whose sum is σ = 22529502. Its totient is φ = 22529500.

The previous prime is 22529483. The next prime is 22529543. The reversal of 22529501 is 10592522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22080601 + 448900 = 4699^2 + 670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22529501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22529561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11264750 + 11264751.

It is an arithmetic number, because the mean of its divisors is an integer number (11264751).

Almost surely, 2^22529501 is an apocalyptic number.

It is an amenable number.

22529501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22529501 is an equidigital number, since it uses as much as digits as its factorization.

22529501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 22529501 is about 4746.5251500440. The cubic root of 22529501 is about 282.4341392399.

The spelling of 22529501 in words is "twenty-two million, five hundred twenty-nine thousand, five hundred one".