23045557 has 8 divisors (see below), whose sum is σ = 24921216. Its totient is φ = 21227712.

The previous prime is 23045497. The next prime is 23045573. The reversal of 23045557 is 75554032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23045557 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 (23045597) 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, 13623 + ... + 15220.

It is an arithmetic number, because the mean of its divisors is an integer number (3115152).

Almost surely, 2^23045557 is an apocalyptic number.

It is an amenable number.

23045557 is a deficient number, since it is larger than the sum of its proper divisors (1875659).

23045557 is a wasteful number, since it uses less digits than its factorization.

23045557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28907.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 23045557 is about 4800.5788192675. The cubic root of 23045557 is about 284.5743394370.

Adding to 23045557 its reverse (75554032), we get a palindrome (98599589).

The spelling of 23045557 in words is "twenty-three million, forty-five thousand, five hundred fifty-seven".