545542403 has 12 divisors (see below), whose sum is σ = 645724560. Its totient is φ = 451478496.

The previous prime is 545542373. The next prime is 545542463. The reversal of 545542403 is 304245545.

It is not a de Polignac number, because 545542403 - 2⁶ = 545542339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545542403.

It is not an unprimeable number, because it can be changed into a prime (545542463) 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, 40448 + ... + 52221.

It is an arithmetic number, because the mean of its divisors is an integer number (53810380).

Almost surely, 2^545542403 is an apocalyptic number.

545542403 is a deficient number, since it is larger than the sum of its proper divisors (100182157).

545542403 is an equidigital number, since it uses as much as digits as its factorization.

545542403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92734 (or 92705 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 545542403 is about 23356.8491667862. The cubic root of 545542403 is about 817.1018067191.

Adding to 545542403 its reverse (304245545), we get a palindrome (849787948).

The spelling of 545542403 in words is "five hundred forty-five million, five hundred forty-two thousand, four hundred three".