2100054545 has 16 divisors (see below), whose sum is σ = 2602877952. Its totient is φ = 1624898880.

The previous prime is 2100054533. The next prime is 2100054589. The reversal of 2100054545 is 5454500012.

It is not a de Polignac number, because 2100054545 - 2¹⁶ = 2099989009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385259 + ... + 390671.

It is an arithmetic number, because the mean of its divisors is an integer number (162679872).

Almost surely, 2^2100054545 is an apocalyptic number.

It is an amenable number.

2100054545 is a deficient number, since it is larger than the sum of its proper divisors (502823407).

2100054545 is a wasteful number, since it uses less digits than its factorization.

2100054545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2100054545 is about 45826.3520804351. The cubic root of 2100054545 is about 1280.5902520646.

Adding to 2100054545 its reverse (5454500012), we get a palindrome (7554554557).

The spelling of 2100054545 in words is "two billion, one hundred million, fifty-four thousand, five hundred forty-five".