1403423553 has 12 divisors (see below), whose sum is σ = 2176738800. Its totient is φ = 801956232.

The previous prime is 1403423531. The next prime is 1403423561. The reversal of 1403423553 is 3553243041.

It is not a de Polignac number, because 1403423553 - 2⁵ = 1403423521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1403423553.

It is not an unprimeable number, because it can be changed into a prime (1403423503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4773403 + ... + 4773696.

It is an arithmetic number, because the mean of its divisors is an integer number (181394900).

Almost surely, 2^1403423553 is an apocalyptic number.

It is an amenable number.

1403423553 is a deficient number, since it is larger than the sum of its proper divisors (773315247).

1403423553 is an equidigital number, since it uses as much as digits as its factorization.

1403423553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547116 (or 9547109 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 1403423553 is about 37462.2950845247. The cubic root of 1403423553 is about 1119.6000785701.

Adding to 1403423553 its reverse (3553243041), we get a palindrome (4956666594).

The spelling of 1403423553 in words is "one billion, four hundred three million, four hundred twenty-three thousand, five hundred fifty-three".