545145511 has 8 divisors (see below), whose sum is σ = 607592880. Its totient is φ = 486073728.

The previous prime is 545145499. The next prime is 545145533. The reversal of 545145511 is 115541545.

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

It is a cyclic number.

It is not a de Polignac number, because 545145511 - 2¹⁷ = 545014439 is a prime.

It is a super-2 number, since 2×545145511² = 594367256326902242, 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 (545145541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843556 + ... + 844201.

It is an arithmetic number, because the mean of its divisors is an integer number (75949110).

Almost surely, 2^545145511 is an apocalyptic number.

545145511 is a deficient number, since it is larger than the sum of its proper divisors (62447369).

545145511 is a wasteful number, since it uses less digits than its factorization.

545145511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687793.

The product of its digits is 10000, while the sum is 31.

The square root of 545145511 is about 23348.3513550743. The cubic root of 545145511 is about 816.9036065148.

It can be divided in two parts, 54514 and 5511, that added together give a square (60025 = 245²).

The spelling of 545145511 in words is "five hundred forty-five million, one hundred forty-five thousand, five hundred eleven".