225921023 has 2 divisors, whose sum is σ = 225921024. Its totient is φ = 225921022.

The previous prime is 225920987. The next prime is 225921037. The reversal of 225921023 is 320129522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225921023 - 2⁸ = 225920767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225920983 and 225921001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225921043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112960511 + 112960512.

It is an arithmetic number, because the mean of its divisors is an integer number (112960512).

Almost surely, 2^225921023 is an apocalyptic number.

225921023 is a deficient number, since it is larger than the sum of its proper divisors (1).

225921023 is an equidigital number, since it uses as much as digits as its factorization.

225921023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 225921023 is about 15030.6694129037. The cubic root of 225921023 is about 609.0489731370.

The spelling of 225921023 in words is "two hundred twenty-five million, nine hundred twenty-one thousand, twenty-three".