22752071 has 2 divisors, whose sum is σ = 22752072. Its totient is φ = 22752070.

The previous prime is 22752019. The next prime is 22752073. The reversal of 22752071 is 17025722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22752071 is a prime.

It is a super-3 number, since 3×22752071³ (a number of 23 digits) contains 333 as substring.

Together with 22752073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22752071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22752073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11376035 + 11376036.

It is an arithmetic number, because the mean of its divisors is an integer number (11376036).

Almost surely, 2^22752071 is an apocalyptic number.

22752071 is a deficient number, since it is larger than the sum of its proper divisors (1).

22752071 is an equidigital number, since it uses as much as digits as its factorization.

22752071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 22752071 is about 4769.9131019338. The cubic root of 22752071 is about 283.3611532852.

Adding to 22752071 its reverse (17025722), we get a palindrome (39777793).

The spelling of 22752071 in words is "twenty-two million, seven hundred fifty-two thousand, seventy-one".