23004251505 has 160 divisors (see below), whose sum is σ = 45050100480. Its totient is φ = 11184721920.

The previous prime is 23004251467. The next prime is 23004251581. The reversal of 23004251505 is 50515240032.

It is a happy number.

23004251505 is a `hidden beast` number, since 230 + 0 + 425 + 1 + 5 + 0 + 5 = 666.

It is not a de Polignac number, because 23004251505 - 2¹⁶ = 23004185969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 64078516 + ... + 64078874.

It is an arithmetic number, because the mean of its divisors is an integer number (281563128).

Almost surely, 2^23004251505 is an apocalyptic number.

It is an amenable number.

23004251505 is a deficient number, since it is larger than the sum of its proper divisors (22045848975).

23004251505 is a wasteful number, since it uses less digits than its factorization.

23004251505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 23004251505 its reverse (50515240032), we get a palindrome (73519491537).

The spelling of 23004251505 in words is "twenty-three billion, four million, two hundred fifty-one thousand, five hundred five".