23512051 has 4 divisors (see below), whose sum is σ = 23670000. Its totient is φ = 23354104.

The previous prime is 23512039. The next prime is 23512087. The reversal of 23512051 is 15021532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23512051 - 2¹⁷ = 23380979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23552051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78751 + ... + 79048.

It is an arithmetic number, because the mean of its divisors is an integer number (5917500).

Almost surely, 2^23512051 is an apocalyptic number.

23512051 is a deficient number, since it is larger than the sum of its proper divisors (157949).

23512051 is a wasteful number, since it uses less digits than its factorization.

23512051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157948.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 23512051 is about 4848.9226638502. The cubic root of 23512051 is about 286.4816691436.

Adding to 23512051 its reverse (15021532), we get a palindrome (38533583).

The spelling of 23512051 in words is "twenty-three million, five hundred twelve thousand, fifty-one".