423550081 has 4 divisors (see below), whose sum is σ = 429871792. Its totient is φ = 417228372.

The previous prime is 423550073. The next prime is 423550093. The reversal of 423550081 is 180055324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423550081 - 2³ = 423550073 is a prime.

It is a super-2 number, since 2×423550081² = 358789342230213122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423550031) 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, 3160755 + ... + 3160888.

It is an arithmetic number, because the mean of its divisors is an integer number (107467948).

Almost surely, 2^423550081 is an apocalyptic number.

It is an amenable number.

423550081 is a deficient number, since it is larger than the sum of its proper divisors (6321711).

423550081 is an equidigital number, since it uses as much as digits as its factorization.

423550081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321710.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 423550081 is about 20580.3323831273. The cubic root of 423550081 is about 750.9913297025.

The spelling of 423550081 in words is "four hundred twenty-three million, five hundred fifty thousand, eighty-one".