545997516 has 24 divisors (see below), whose sum is σ = 1286610864. Its totient is φ = 180196800.

The previous prime is 545997503. The next prime is 545997527. The reversal of 545997516 is 615799545.

It is a super-2 number, since 2×545997516² = 596226574956340512, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 224035 + ... + 226458.

It is an arithmetic number, because the mean of its divisors is an integer number (53608786).

Almost surely, 2^545997516 is an apocalyptic number.

It is an amenable number.

545997516 is an abundant number, since it is smaller than the sum of its proper divisors (740613348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545997516 is a wasteful number, since it uses less digits than its factorization.

545997516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450601 (or 450599 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 51.

The square root of 545997516 is about 23366.5897383422. The cubic root of 545997516 is about 817.3289630867.

The spelling of 545997516 in words is "five hundred forty-five million, nine hundred ninety-seven thousand, five hundred sixteen".