23522501 has 2 divisors, whose sum is σ = 23522502. Its totient is φ = 23522500.

The previous prime is 23522497. The next prime is 23522503. The reversal of 23522501 is 10522532.

It is a Cunningham number, because it is equal to 4850²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23522500 + 1 = 4850^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 23522501 - 2² = 23522497 is a prime.

It is a Sophie Germain prime.

Together with 23522503, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23522503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11761250 + 11761251.

It is an arithmetic number, because the mean of its divisors is an integer number (11761251).

Almost surely, 2^23522501 is an apocalyptic number.

It is an amenable number.

23522501 is a deficient number, since it is larger than the sum of its proper divisors (1).

23522501 is an equidigital number, since it uses as much as digits as its factorization.

23522501 is an evil number, because the sum of its binary digits is even.

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

The square root of 23522501 is about 4850.0001030928. Note that the first 3 decimals coincide. The cubic root of 23522501 is about 286.5241053965.

The spelling of 23522501 in words is "twenty-three million, five hundred twenty-two thousand, five hundred one".