23550340551 has 4 divisors (see below), whose sum is σ = 31400454072. Its totient is φ = 15700227032.

The previous prime is 23550340547. The next prime is 23550340553. The reversal of 23550340551 is 15504305532.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23550340551 - 2² = 23550340547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23550340553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3925056756 + ... + 3925056761.

It is an arithmetic number, because the mean of its divisors is an integer number (7850113518).

Almost surely, 2^23550340551 is an apocalyptic number.

23550340551 is a deficient number, since it is larger than the sum of its proper divisors (7850113521).

23550340551 is an equidigital number, since it uses as much as digits as its factorization.

23550340551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850113520.

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 23550340551 in words is "twenty-three billion, five hundred fifty million, three hundred forty thousand, five hundred fifty-one".