545870826 has 32 divisors (see below), whose sum is σ = 1228032000. Its totient is φ = 181955484.

The previous prime is 545870821. The next prime is 545870837. The reversal of 545870826 is 628078545.

545870826 is a `hidden beast` number, since 545 + 87 + 0 + 8 + 26 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545870821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58026 + ... + 66773.

It is an arithmetic number, because the mean of its divisors is an integer number (38376000).

Almost surely, 2^545870826 is an apocalyptic number.

545870826 is an abundant number, since it is smaller than the sum of its proper divisors (682161174).

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

545870826 is an equidigital number, since it uses as much as digits as its factorization.

545870826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124822 (or 124804 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 545870826 is about 23363.8786591610. The cubic root of 545870826 is about 817.2657421542.

The spelling of 545870826 in words is "five hundred forty-five million, eight hundred seventy thousand, eight hundred twenty-six".