545511000 has 64 divisors (see below), whose sum is σ = 1702003680. Its totient is φ = 145468800.

The previous prime is 545510989. The next prime is 545511007. The reversal of 545511000 is 115545.

It is a super-2 number, since 2×545511000² = 595164502242000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545511007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87919 + ... + 93918.

Almost surely, 2^545511000 is an apocalyptic number.

545511000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545511000 is an abundant number, since it is smaller than the sum of its proper divisors (1156492680).

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

545511000 is a wasteful number, since it uses less digits than its factorization.

545511000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181861 (or 181847 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 545511000 is about 23356.1769131851. The cubic root of 545511000 is about 817.0861281697.

Adding to 545511000 its reverse (115545), we get a palindrome (545626545).

The spelling of 545511000 in words is "five hundred forty-five million, five hundred eleven thousand".