23027551 has 2 divisors, whose sum is σ = 23027552. Its totient is φ = 23027550.

The previous prime is 23027549. The next prime is 23027569. The reversal of 23027551 is 15572032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23027551 - 2¹ = 23027549 is a prime.

Together with 23027549, it forms a pair of twin primes.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23027581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11513775 + 11513776.

It is an arithmetic number, because the mean of its divisors is an integer number (11513776).

Almost surely, 2^23027551 is an apocalyptic number.

23027551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23027551 is an equidigital number, since it uses as much as digits as its factorization.

23027551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 23027551 is about 4798.7030539511. The cubic root of 23027551 is about 284.5002053983.

Adding to 23027551 its reverse (15572032), we get a palindrome (38599583).

The spelling of 23027551 in words is "twenty-three million, twenty-seven thousand, five hundred fifty-one".