20627552031005 has 4 divisors (see below), whose sum is σ = 24753062437212. Its totient is φ = 16502041624800.

The previous prime is 20627552031001. The next prime is 20627552031011. The reversal of 20627552031005 is 50013025572602.

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 10738558596676 + 9888993434329 = 3276974^2 + 3144677^2 .

It is not a de Polignac number, because 20627552031005 - 2² = 20627552031001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20627552031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20627552031001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2062755203096 + ... + 2062755203105.

It is an arithmetic number, because the mean of its divisors is an integer number (6188265609303).

Almost surely, 2^{20627552031005} is an apocalyptic number.

It is an amenable number.

20627552031005 is a deficient number, since it is larger than the sum of its proper divisors (4125510406207).

20627552031005 is an equidigital number, since it uses as much as digits as its factorization.

20627552031005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125510406206.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 20627552031005 in words is "twenty trillion, six hundred twenty-seven billion, five hundred fifty-two million, thirty-one thousand, five".