23553345 has 16 divisors (see below), whose sum is σ = 38488320. Its totient is φ = 12294144.

The previous prime is 23553329. The next prime is 23553353. The reversal of 23553345 is 54335532.

It is not a de Polignac number, because 23553345 - 2⁴ = 23553329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16000 + ... + 17409.

It is an arithmetic number, because the mean of its divisors is an integer number (2405520).

Almost surely, 2^23553345 is an apocalyptic number.

It is an amenable number.

23553345 is a deficient number, since it is larger than the sum of its proper divisors (14934975).

23553345 is a wasteful number, since it uses less digits than its factorization.

23553345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33464.

The product of its digits is 27000, while the sum is 30.

The square root of 23553345 is about 4853.1788551423. The cubic root of 23553345 is about 286.6492860985.

Adding to 23553345 its reverse (54335532), we get a palindrome (77888877).

The spelling of 23553345 in words is "twenty-three million, five hundred fifty-three thousand, three hundred forty-five".