423355553325 has 18 divisors (see below), whose sum is σ = 758276835914. Its totient is φ = 225789628320.

The previous prime is 423355553303. The next prime is 423355553363. The reversal of 423355553325 is 523355553324.

423355553325 is a `hidden beast` number, since 4 + 23 + 3 + 55 + 553 + 3 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 45993520521 + 377362032804 = 214461^2 + 614298^2 .

It is not a de Polignac number, because 423355553325 - 2⁷ = 423355553197 is a prime.

It is a super-2 number, since 2×423355553325² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 940789894 + ... + 940790343.

Almost surely, 2^423355553325 is an apocalyptic number.

423355553325 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423355553325 is a deficient number, since it is larger than the sum of its proper divisors (334921282589).

423355553325 is a wasteful number, since it uses less digits than its factorization.

423355553325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881580253 (or 1881580245 counting only the distinct ones).

The product of its digits is 4050000, while the sum is 45.

Subtracting 423355553325 from its reverse (523355553324), we obtain a palindrome (99999999999).

The spelling of 423355553325 in words is "four hundred twenty-three billion, three hundred fifty-five million, five hundred fifty-three thousand, three hundred twenty-five".