545630511 has 4 divisors (see below), whose sum is σ = 727507352. Its totient is φ = 363753672.

The previous prime is 545630387. The next prime is 545630531. The reversal of 545630511 is 115036545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 545630511 - 2⁷ = 545630383 is a prime.

It is a super-2 number, since 2×545630511² = 595425309068242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545630531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90938416 + ... + 90938421.

It is an arithmetic number, because the mean of its divisors is an integer number (181876838).

Almost surely, 2^545630511 is an apocalyptic number.

545630511 is a deficient number, since it is larger than the sum of its proper divisors (181876841).

545630511 is a wasteful number, since it uses less digits than its factorization.

545630511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181876840.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 545630511 is about 23358.7352183289. The cubic root of 545630511 is about 817.1457931139.

The spelling of 545630511 in words is "five hundred forty-five million, six hundred thirty thousand, five hundred eleven".