545481506 has 8 divisors (see below), whose sum is σ = 825869520. Its totient is φ = 270191668.

The previous prime is 545481493. The next prime is 545481527. The reversal of 545481506 is 605184545.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 545481506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274276 + ... + 1274703.

It is an arithmetic number, because the mean of its divisors is an integer number (103233690).

Almost surely, 2^545481506 is an apocalyptic number.

545481506 is a deficient number, since it is larger than the sum of its proper divisors (280388014).

545481506 is a wasteful number, since it uses less digits than its factorization.

545481506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549088.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 545481506 is about 23355.5455085083. The cubic root of 545481506 is about 817.0714021773.

The spelling of 545481506 in words is "five hundred forty-five million, four hundred eighty-one thousand, five hundred six".