23251005 has 12 divisors (see below), whose sum is σ = 40301820. Its totient is φ = 12400512.

The previous prime is 23251001. The next prime is 23251021. The reversal of 23251005 is 50015232.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 11819844 = 3381^2 + 3438^2 .

It is not a de Polignac number, because 23251005 - 2² = 23251001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23251001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258300 + ... + 258389.

It is an arithmetic number, because the mean of its divisors is an integer number (3358485).

Almost surely, 2^23251005 is an apocalyptic number.

It is an amenable number.

23251005 is a deficient number, since it is larger than the sum of its proper divisors (17050815).

23251005 is a wasteful number, since it uses less digits than its factorization.

23251005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516700 (or 516697 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 23251005 is about 4821.9295930156. The cubic root of 23251005 is about 285.4174860177.

Adding to 23251005 its reverse (50015232), we get a palindrome (73266237).

The spelling of 23251005 in words is "twenty-three million, two hundred fifty-one thousand, five".