23000551 has 8 divisors (see below), whose sum is σ = 26823200. Its totient is φ = 19714464.

The previous prime is 23000533. The next prime is 23000557. The reversal of 23000551 is 15500032.

It is not a de Polignac number, because 23000551 - 2¹⁵ = 22967783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33186 + ... + 33871.

It is an arithmetic number, because the mean of its divisors is an integer number (3352900).

Almost surely, 2^23000551 is an apocalyptic number.

23000551 is a deficient number, since it is larger than the sum of its proper divisors (3822649).

23000551 is an frugal number, since it uses more digits than its factorization.

23000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67078 (or 67064 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 23000551 is about 4795.8889686897. Note that the first 3 decimals coincide. The cubic root of 23000551 is about 284.3889689391.

Adding to 23000551 its reverse (15500032), we get a palindrome (38500583).

The spelling of 23000551 in words is "twenty-three million, five hundred fifty-one", and thus it is an aban number.