23035551 has 16 divisors (see below), whose sum is σ = 38293248. Its totient is φ = 11966400.

The previous prime is 23035517. The next prime is 23035553. The reversal of 23035551 is 15553032.

It is not a de Polignac number, because 23035551 - 2¹⁸ = 22773407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23035553) 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 in 15 ways as a sum of consecutive naturals, for example, 49630 + ... + 50091.

It is an arithmetic number, because the mean of its divisors is an integer number (2393328).

Almost surely, 2^23035551 is an apocalyptic number.

23035551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23035551 is a deficient number, since it is larger than the sum of its proper divisors (15257697).

23035551 is a wasteful number, since it uses less digits than its factorization.

23035551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99742.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 23035551 is about 4799.5365401255. The cubic root of 23035551 is about 284.5331476497.

Adding to 23035551 its reverse (15553032), we get a palindrome (38588583).

The spelling of 23035551 in words is "twenty-three million, thirty-five thousand, five hundred fifty-one".