423555031 has 8 divisors (see below), whose sum is σ = 434107520. Its totient is φ = 413034552.

The previous prime is 423555029. The next prime is 423555037. The reversal of 423555031 is 130555324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423555031 - 2¹ = 423555029 is a prime.

It is a super-2 number, since 2×423555031² = 358797728570821922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423555037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19990 + ... + 35308.

It is an arithmetic number, because the mean of its divisors is an integer number (54263440).

Almost surely, 2^423555031 is an apocalyptic number.

423555031 is a deficient number, since it is larger than the sum of its proper divisors (10552489).

423555031 is a wasteful number, since it uses less digits than its factorization.

423555031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16005.

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

The square root of 423555031 is about 20580.4526432243. The cubic root of 423555031 is about 750.9942552854.

The spelling of 423555031 in words is "four hundred twenty-three million, five hundred fifty-five thousand, thirty-one".