545445100 has 18 divisors (see below), whose sum is σ = 1183616084. Its totient is φ = 218178000.

The previous prime is 545445073. The next prime is 545445127. The reversal of 545445100 is 1544545.

It is an interprime number because it is at equal distance from previous prime (545445073) and next prime (545445127).

It is a super-2 number, since 2×545445100² = 595020714228020000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2727126 + ... + 2727325.

Almost surely, 2^545445100 is an apocalyptic number.

545445100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545445100 is an abundant number, since it is smaller than the sum of its proper divisors (638170984).

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

545445100 is a wasteful number, since it uses less digits than its factorization.

545445100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454465 (or 5454458 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 545445100 is about 23354.7661088695. The cubic root of 545445100 is about 817.0532243760.

Adding to 545445100 its reverse (1544545), we get a palindrome (546989645).

It can be divided in two parts, 545445 and 100, that added together give a palindrome (545545).

The spelling of 545445100 in words is "five hundred forty-five million, four hundred forty-five thousand, one hundred".