23530245551 has 2 divisors, whose sum is σ = 23530245552. Its totient is φ = 23530245550.

The previous prime is 23530245527. The next prime is 23530245569. The reversal of 23530245551 is 15554203532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23530245551 - 2²² = 23526051247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23530245451) 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, 11765122775 + 11765122776.

It is an arithmetic number, because the mean of its divisors is an integer number (11765122776).

Almost surely, 2^23530245551 is an apocalyptic number.

23530245551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23530245551 is an equidigital number, since it uses as much as digits as its factorization.

23530245551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 23530245551 in words is "twenty-three billion, five hundred thirty million, two hundred forty-five thousand, five hundred fifty-one".