423005755 has 4 divisors (see below), whose sum is σ = 507606912. Its totient is φ = 338404600.

The previous prime is 423005741. The next prime is 423005767. The reversal of 423005755 is 557500324.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 423005755 - 2¹³ = 422997563 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42300571 + ... + 42300580.

It is an arithmetic number, because the mean of its divisors is an integer number (126901728).

Almost surely, 2^423005755 is an apocalyptic number.

423005755 is a deficient number, since it is larger than the sum of its proper divisors (84601157).

423005755 is an equidigital number, since it uses as much as digits as its factorization.

423005755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84601156.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 423005755 is about 20567.1037095649. The cubic root of 423005755 is about 750.6694792559.

The spelling of 423005755 in words is "four hundred twenty-three million, five thousand, seven hundred fifty-five".