40005055005505 has 4 divisors (see below), whose sum is σ = 48006066006612. Its totient is φ = 32004044004400.

The previous prime is 40005055005481. The next prime is 40005055005533. The reversal of 40005055005505 is 50550055050004.

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 13106434518961 + 26898620486544 = 3620281^2 + 5186388^2 .

It is not a de Polignac number, because 40005055005505 - 2²⁹ = 40004518134593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000505500546 + ... + 4000505500555.

It is an arithmetic number, because the mean of its divisors is an integer number (12001516501653).

Almost surely, 2^{40005055005505} is an apocalyptic number.

It is an amenable number.

40005055005505 is a deficient number, since it is larger than the sum of its proper divisors (8001011001107).

40005055005505 is an equidigital number, since it uses as much as digits as its factorization.

40005055005505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8001011001106.

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 40005055005505 in words is "forty trillion, five billion, fifty-five million, five thousand, five hundred five".