545481507 has 32 divisors (see below), whose sum is σ = 792368640. Its totient is φ = 332640000.

The previous prime is 545481493. The next prime is 545481527. The reversal of 545481507 is 705184545.

It is not a de Polignac number, because 545481507 - 2²⁴ = 528704291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545481527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234882 + ... + 237192.

It is an arithmetic number, because the mean of its divisors is an integer number (24761520).

Almost surely, 2^545481507 is an apocalyptic number.

545481507 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

545481507 is a deficient number, since it is larger than the sum of its proper divisors (246887133).

545481507 is a wasteful number, since it uses less digits than its factorization.

545481507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475.

The product of its (nonzero) digits is 112000, while the sum is 39.

The square root of 545481507 is about 23355.5455299164. The cubic root of 545481507 is about 817.0714026766.

The spelling of 545481507 in words is "five hundred forty-five million, four hundred eighty-one thousand, five hundred seven".