23057551 has 8 divisors (see below), whose sum is σ = 25204608. Its totient is φ = 20919000.

The previous prime is 23057543. The next prime is 23057563. The reversal of 23057551 is 15575032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23057551 - 2³ = 23057543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23057591) 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, 4446 + ... + 8116.

It is an arithmetic number, because the mean of its divisors is an integer number (3150576).

Almost surely, 2^23057551 is an apocalyptic number.

23057551 is a deficient number, since it is larger than the sum of its proper divisors (2147057).

23057551 is a wasteful number, since it uses less digits than its factorization.

23057551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 23057551 is about 4801.8278811303. The cubic root of 23057551 is about 284.6236995323.

The spelling of 23057551 in words is "twenty-three million, fifty-seven thousand, five hundred fifty-one".