423025531 has 2 divisors, whose sum is σ = 423025532. Its totient is φ = 423025530.

The previous prime is 423025451. The next prime is 423025567. The reversal of 423025531 is 135520324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423025531 - 2²³ = 414636923 is a prime.

It is a super-2 number, since 2×423025531² = 357901199755663922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423025496 and 423025505.

It is not a weakly prime, because it can be changed into another prime (423025571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211512765 + 211512766.

It is an arithmetic number, because the mean of its divisors is an integer number (211512766).

Almost surely, 2^423025531 is an apocalyptic number.

423025531 is a deficient number, since it is larger than the sum of its proper divisors (1).

423025531 is an equidigital number, since it uses as much as digits as its factorization.

423025531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 423025531 is about 20567.5844716875. The cubic root of 423025531 is about 750.6811772908.

Adding to 423025531 its reverse (135520324), we get a palindrome (558545855).

The spelling of 423025531 in words is "four hundred twenty-three million, twenty-five thousand, five hundred thirty-one".