423550511 has 16 divisors (see below), whose sum is σ = 442197888. Its totient is φ = 405388800.

The previous prime is 423550493. The next prime is 423550549. The reversal of 423550511 is 115055324.

It is a cyclic number.

It is not a de Polignac number, because 423550511 - 2²² = 419356207 is a prime.

It is a super-2 number, since 2×423550511² = 358790070736722242, 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 (423550711) 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 in 15 ways as a sum of consecutive naturals, for example, 690641 + ... + 691253.

It is an arithmetic number, because the mean of its divisors is an integer number (27637368).

Almost surely, 2^423550511 is an apocalyptic number.

423550511 is a deficient number, since it is larger than the sum of its proper divisors (18647377).

423550511 is a wasteful number, since it uses less digits than its factorization.

423550511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 423550511 is about 20580.3428299919. The cubic root of 423550511 is about 750.9915838450.

It can be divided in two parts, 42 and 3550511, that added together give a palindrome (3550553).

The spelling of 423550511 in words is "four hundred twenty-three million, five hundred fifty thousand, five hundred eleven".