23557603 has 2 divisors, whose sum is σ = 23557604. Its totient is φ = 23557602.

The previous prime is 23557577. The next prime is 23557607. The reversal of 23557603 is 30675532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23557603 - 2⁵ = 23557571 is a prime.

It is not a weakly prime, because it can be changed into another prime (23557607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11778801 + 11778802.

It is an arithmetic number, because the mean of its divisors is an integer number (11778802).

Almost surely, 2^23557603 is an apocalyptic number.

23557603 is a deficient number, since it is larger than the sum of its proper divisors (1).

23557603 is an equidigital number, since it uses as much as digits as its factorization.

23557603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 23557603 is about 4853.6175168631. The cubic root of 23557603 is about 286.6665586503. Note that the first 3 decimals are identical.

The spelling of 23557603 in words is "twenty-three million, five hundred fifty-seven thousand, six hundred three".