23638755001 has 3 divisors (see below), whose sum is σ = 23638908751. Its totient is φ = 23638601252.

The previous prime is 23638754969. The next prime is 23638755043. The reversal of 23638755001 is 10055783632.

The square root of 23638755001 is 153749.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 6650239401 + 16988515600 = 81549^2 + 130340^2 .

It is not a de Polignac number, because 23638755001 - 2⁵ = 23638754969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23638755061) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76875 + ... + 230623.

Almost surely, 2^23638755001 is an apocalyptic number.

23638755001 is the 153749-th square number.

23638755001 is the 76875-th centered octagonal number.

It is an amenable number.

23638755001 is a deficient number, since it is larger than the sum of its proper divisors (153750).

23638755001 is an frugal number, since it uses more digits than its factorization.

23638755001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307498 (or 153749 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 23638755001 in words is "twenty-three billion, six hundred thirty-eight million, seven hundred fifty-five thousand, one".