423350551 has 4 divisors (see below), whose sum is σ = 455915992. Its totient is φ = 390785112.

The previous prime is 423350531. The next prime is 423350567. The reversal of 423350551 is 155053324.

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

It is a cyclic number.

It is not a de Polignac number, because 423350551 - 2⁵ = 423350519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423350531) 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, 16282701 + ... + 16282726.

It is an arithmetic number, because the mean of its divisors is an integer number (113978998).

Almost surely, 2^423350551 is an apocalyptic number.

423350551 is a deficient number, since it is larger than the sum of its proper divisors (32565441).

423350551 is a wasteful number, since it uses less digits than its factorization.

423350551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32565440.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 423350551 is about 20575.4842227346. The cubic root of 423350551 is about 750.8733831337.

The spelling of 423350551 in words is "four hundred twenty-three million, three hundred fifty thousand, five hundred fifty-one".