40544525305 has 4 divisors (see below), whose sum is σ = 48653430372. Its totient is φ = 32435620240.

The previous prime is 40544525293. The next prime is 40544525369. The reversal of 40544525305 is 50352544504.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22568151529 + 17976373776 = 150227^2 + 134076^2 .

It is not a de Polignac number, because 40544525305 - 2⁹ = 40544524793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4054452526 + ... + 4054452535.

It is an arithmetic number, because the mean of its divisors is an integer number (12163357593).

Almost surely, 2^40544525305 is an apocalyptic number.

It is an amenable number.

40544525305 is a deficient number, since it is larger than the sum of its proper divisors (8108905067).

40544525305 is an equidigital number, since it uses as much as digits as its factorization.

40544525305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8108905066.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 40544525305 in words is "forty billion, five hundred forty-four million, five hundred twenty-five thousand, three hundred five".