545011800 has 48 divisors (see below), whose sum is σ = 1689538440. Its totient is φ = 145336320.

The previous prime is 545011741. The next prime is 545011807. The reversal of 545011800 is 8110545.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545011807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453577 + ... + 454776.

Almost surely, 2^545011800 is an apocalyptic number.

545011800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545011800 is an abundant number, since it is smaller than the sum of its proper divisors (1144526640).

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

545011800 is a wasteful number, since it uses less digits than its factorization.

545011800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908372 (or 908363 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 545011800 is about 23345.4877867223. The cubic root of 545011800 is about 816.8368121590.

The spelling of 545011800 in words is "five hundred forty-five million, eleven thousand, eight hundred".