545535421 has 4 divisors (see below), whose sum is σ = 547463392. Its totient is φ = 543607452.

The previous prime is 545535407. The next prime is 545535433. The reversal of 545535421 is 124535545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545535421 - 2⁷ = 545535293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545535121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963561 + ... + 964126.

It is an arithmetic number, because the mean of its divisors is an integer number (136865848).

Almost surely, 2^545535421 is an apocalyptic number.

It is an amenable number.

545535421 is a deficient number, since it is larger than the sum of its proper divisors (1927971).

545535421 is a wasteful number, since it uses less digits than its factorization.

545535421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927970.

The product of its digits is 60000, while the sum is 34.

The square root of 545535421 is about 23356.6997026549. The cubic root of 545535421 is about 817.0983208738.

The spelling of 545535421 in words is "five hundred forty-five million, five hundred thirty-five thousand, four hundred twenty-one".