20223551055 has 32 divisors (see below), whose sum is σ = 33004034496. Its totient is φ = 10570886144.

The previous prime is 20223551053. The next prime is 20223551059. The reversal of 20223551055 is 55015532202.

It is a cyclic number.

It is not a de Polignac number, because 20223551055 - 2¹ = 20223551053 is a prime.

It is a super-2 number, since 2×20223551055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223551053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 744289 + ... + 770981.

It is an arithmetic number, because the mean of its divisors is an integer number (1031376078).

Almost surely, 2^20223551055 is an apocalyptic number.

20223551055 is a deficient number, since it is larger than the sum of its proper divisors (12780483441).

20223551055 is a wasteful number, since it uses less digits than its factorization.

20223551055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27707.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 20223551055 in words is "twenty billion, two hundred twenty-three million, five hundred fifty-one thousand, fifty-five".