545514493 has 4 divisors (see below), whose sum is σ = 548562240. Its totient is φ = 542466748.

The previous prime is 545514457. The next prime is 545514503. The reversal of 545514493 is 394415545.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394415545 = 5 ⋅78883109.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545514493 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 (545514293) 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, 1523605 + ... + 1523962.

It is an arithmetic number, because the mean of its divisors is an integer number (137140560).

Almost surely, 2^545514493 is an apocalyptic number.

It is an amenable number.

545514493 is a deficient number, since it is larger than the sum of its proper divisors (3047747).

545514493 is a wasteful number, since it uses less digits than its factorization.

545514493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047746.

The product of its digits is 216000, while the sum is 40.

The square root of 545514493 is about 23356.2516898581. The cubic root of 545514493 is about 817.0878721467.

The spelling of 545514493 in words is "five hundred forty-five million, five hundred fourteen thousand, four hundred ninety-three".