545622371 has 4 divisors (see below), whose sum is σ = 623568432. Its totient is φ = 467676312.

The previous prime is 545622349. The next prime is 545622397. The reversal of 545622371 is 173226545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545622371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545622271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38973020 + ... + 38973033.

It is an arithmetic number, because the mean of its divisors is an integer number (155892108).

Almost surely, 2^545622371 is an apocalyptic number.

545622371 is a deficient number, since it is larger than the sum of its proper divisors (77946061).

545622371 is an equidigital number, since it uses as much as digits as its factorization.

545622371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77946060.

The product of its digits is 50400, while the sum is 35.

The square root of 545622371 is about 23358.5609787932. The cubic root of 545622371 is about 817.1417295582.

The spelling of 545622371 in words is "five hundred forty-five million, six hundred twenty-two thousand, three hundred seventy-one".