2021105250054 has 48 divisors (see below), whose sum is σ = 4936767660720. Its totient is φ = 612456134400.

The previous prime is 2021105250053. The next prime is 2021105250077. The reversal of 2021105250054 is 4500525011202.

2021105250054 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 105 + 2 + 500 + 54 = 666.

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 (2021105250053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154654107 + ... + 154667174.

It is an arithmetic number, because the mean of its divisors is an integer number (102849326265).

Almost surely, 2^{2021105250054} is an apocalyptic number.

2021105250054 is an abundant number, since it is smaller than the sum of its proper divisors (2915662410666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021105250054 is a wasteful number, since it uses less digits than its factorization.

2021105250054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309321314 (or 309321297 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 2021105250054 in words is "two trillion, twenty-one billion, one hundred five million, two hundred fifty thousand, fifty-four".