545918011 has 16 divisors (see below), whose sum is σ = 571982400. Its totient is φ = 520386048.

The previous prime is 545917987. The next prime is 545918027. The reversal of 545918011 is 110819545.

It is a cyclic number.

It is not a de Polignac number, because 545918011 - 2¹¹ = 545915963 is a prime.

It is a super-2 number, since 2×545918011² = 596052949468392242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545918111) 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 15 ways as a sum of consecutive naturals, for example, 1243330 + ... + 1243768.

It is an arithmetic number, because the mean of its divisors is an integer number (35748900).

Almost surely, 2^545918011 is an apocalyptic number.

545918011 is a deficient number, since it is larger than the sum of its proper divisors (26064389).

545918011 is a wasteful number, since it uses less digits than its factorization.

545918011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 545918011 is about 23364.8884225883. Note that the first 3 decimals coincide. The cubic root of 545918011 is about 817.2892895890.

The spelling of 545918011 in words is "five hundred forty-five million, nine hundred eighteen thousand, eleven".