545991382 has 16 divisors (see below), whose sum is σ = 849522960. Its totient is φ = 262991232.

The previous prime is 545991379. The next prime is 545991401. The reversal of 545991382 is 283199545.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37207 + ... + 49762.

It is an arithmetic number, because the mean of its divisors is an integer number (53095185).

Almost surely, 2^545991382 is an apocalyptic number.

545991382 is a deficient number, since it is larger than the sum of its proper divisors (303531578).

545991382 is a wasteful number, since it uses less digits than its factorization.

545991382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87087.

The product of its digits is 388800, while the sum is 46.

The square root of 545991382 is about 23366.4584821919. The cubic root of 545991382 is about 817.3259023190.

The spelling of 545991382 in words is "five hundred forty-five million, nine hundred ninety-one thousand, three hundred eighty-two".