23251065289 has 9 divisors (see below), whose sum is σ = 23440910727. Its totient is φ = 23062748784.

The previous prime is 23251065287. The next prime is 23251065293. The reversal of 23251065289 is 98256015232.

The square root of 23251065289 is 152483.

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

It can be written as a sum of positive squares in only one way, i.e., 6612129225 + 16638936064 = 81315^2 + 128992^2 .

It is not a de Polignac number, because 23251065289 - 2¹ = 23251065287 is a prime.

It is a super-2 number, since 2×23251065289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23251065281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21194589 + ... + 21195685.

Almost surely, 2^23251065289 is an apocalyptic number.

23251065289 is the 152483-rd square number.

23251065289 is the 76242-nd centered octagonal number.

It is an amenable number.

23251065289 is a deficient number, since it is larger than the sum of its proper divisors (189845438).

23251065289 is an frugal number, since it uses more digits than its factorization.

23251065289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 23251065289 in words is "twenty-three billion, two hundred fifty-one million, sixty-five thousand, two hundred eighty-nine".