20055312251205 has 64 divisors (see below), whose sum is σ = 40011667255296. Its totient is φ = 8333586432000.

The previous prime is 20055312251201. The next prime is 20055312251237. The reversal of 20055312251205 is 50215221355002.

It is not a de Polignac number, because 20055312251205 - 2² = 20055312251201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055312251201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7741240 + ... + 10001870.

It is an arithmetic number, because the mean of its divisors is an integer number (625182300864).

Almost surely, 2^{20055312251205} is an apocalyptic number.

It is an amenable number.

20055312251205 is a deficient number, since it is larger than the sum of its proper divisors (19956355004091).

20055312251205 is a wasteful number, since it uses less digits than its factorization.

20055312251205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268338.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 20055312251205 in words is "twenty trillion, fifty-five billion, three hundred twelve million, two hundred fifty-one thousand, two hundred five".