545514491 has 4 divisors (see below), whose sum is σ = 574225800. Its totient is φ = 516803184.

The previous prime is 545514457. The next prime is 545514503. The reversal of 545514491 is 194415545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545514491 - 2⁶ = 545514427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545514401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14355626 + ... + 14355663.

It is an arithmetic number, because the mean of its divisors is an integer number (143556450).

Almost surely, 2^545514491 is an apocalyptic number.

545514491 is a deficient number, since it is larger than the sum of its proper divisors (28711309).

545514491 is a wasteful number, since it uses less digits than its factorization.

545514491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28711308.

The product of its digits is 72000, while the sum is 38.

The square root of 545514491 is about 23356.2516470430. The cubic root of 545514491 is about 817.0878711481.

The spelling of 545514491 in words is "five hundred forty-five million, five hundred fourteen thousand, four hundred ninety-one".