23425513 has 2 divisors, whose sum is σ = 23425514. Its totient is φ = 23425512.

The previous prime is 23425487. The next prime is 23425543. The reversal of 23425513 is 31552432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18550249 + 4875264 = 4307^2 + 2208^2 .

It is a cyclic number.

It is not a de Polignac number, because 23425513 - 2¹³ = 23417321 is a prime.

It is not a weakly prime, because it can be changed into another prime (23425543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11712756 + 11712757.

It is an arithmetic number, because the mean of its divisors is an integer number (11712757).

Almost surely, 2^23425513 is an apocalyptic number.

It is an amenable number.

23425513 is a deficient number, since it is larger than the sum of its proper divisors (1).

23425513 is an equidigital number, since it uses as much as digits as its factorization.

23425513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 23425513 is about 4839.9910123883. The cubic root of 23425513 is about 286.1297640887.

Adding to 23425513 its reverse (31552432), we get a palindrome (54977945).

The spelling of 23425513 in words is "twenty-three million, four hundred twenty-five thousand, five hundred thirteen".