23032551 has 16 divisors (see below), whose sum is σ = 31299840. Its totient is φ = 15063360.

The previous prime is 23032547. The next prime is 23032567. The reversal of 23032551 is 15523032.

23032551 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 23032551 - 2² = 23032547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23032531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40195 + ... + 40763.

It is an arithmetic number, because the mean of its divisors is an integer number (1956240).

Almost surely, 2^23032551 is an apocalyptic number.

23032551 is a deficient number, since it is larger than the sum of its proper divisors (8267289).

23032551 is a wasteful number, since it uses less digits than its factorization.

23032551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23032551 is about 4799.2239997733. The cubic root of 23032551 is about 284.5207951994.

Adding to 23032551 its reverse (15523032), we get a palindrome (38555583).

The spelling of 23032551 in words is "twenty-three million, thirty-two thousand, five hundred fifty-one".