20210552055 has 32 divisors (see below), whose sum is σ = 35935992000. Its totient is φ = 10777124736.

The previous prime is 20210552053. The next prime is 20210552057. The reversal of 20210552055 is 55025501202.

It is an interprime number because it is at equal distance from previous prime (20210552053) and next prime (20210552057).

It is not a de Polignac number, because 20210552055 - 2¹ = 20210552053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210552053) 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, 1228021 + ... + 1244369.

It is an arithmetic number, because the mean of its divisors is an integer number (1122999750).

Almost surely, 2^20210552055 is an apocalyptic number.

20210552055 is a deficient number, since it is larger than the sum of its proper divisors (15725439945).

20210552055 is a wasteful number, since it uses less digits than its factorization.

20210552055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25520 (or 25514 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The spelling of 20210552055 in words is "twenty billion, two hundred ten million, five hundred fifty-two thousand, fifty-five".