23250421 has 2 divisors, whose sum is σ = 23250422. Its totient is φ = 23250420.

The previous prime is 23250419. The next prime is 23250439. The reversal of 23250421 is 12405232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 9523396 = 3705^2 + 3086^2 .

It is a cyclic number.

It is not a de Polignac number, because 23250421 - 2¹ = 23250419 is a prime.

Together with 23250419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23250481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11625210 + 11625211.

It is an arithmetic number, because the mean of its divisors is an integer number (11625211).

Almost surely, 2^23250421 is an apocalyptic number.

It is an amenable number.

23250421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23250421 is an equidigital number, since it uses as much as digits as its factorization.

23250421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23250421 is about 4821.8690359652. The cubic root of 23250421 is about 285.4150963690.

Adding to 23250421 its reverse (12405232), we get a palindrome (35655653).

It can be divided in two parts, 232 and 50421, that added together give a cube (50653 = 37³).

The spelling of 23250421 in words is "twenty-three million, two hundred fifty thousand, four hundred twenty-one".