423023553 has 40 divisors (see below), whose sum is σ = 653283840. Its totient is φ = 272587680.

The previous prime is 423023533. The next prime is 423023617. The reversal of 423023553 is 355320324.

423023553 is a `hidden beast` number, since 4 + 2 + 302 + 355 + 3 = 666.

It is not a de Polignac number, because 423023553 - 2¹³ = 423015361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423023533) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 572058 + ... + 572796.

It is an arithmetic number, because the mean of its divisors is an integer number (16332096).

Almost surely, 2^423023553 is an apocalyptic number.

It is an amenable number.

423023553 is a deficient number, since it is larger than the sum of its proper divisors (230260287).

423023553 is a wasteful number, since it uses less digits than its factorization.

423023553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 423023553 is about 20567.5363862569. The cubic root of 423023553 is about 750.6800072672.

Adding to 423023553 its reverse (355320324), we get a palindrome (778343877).

The spelling of 423023553 in words is "four hundred twenty-three million, twenty-three thousand, five hundred fifty-three".