2113553554 has 12 divisors (see below), whose sum is σ = 3687935454. Its totient is φ = 905808624.

The previous prime is 2113553551. The next prime is 2113553579. The reversal of 2113553554 is 4553553112.

It can be written as a sum of positive squares in only one way, i.e., 2109289329 + 4264225 = 45927^2 + 2065^2 .

It is not an unprimeable number, because it can be changed into a prime (2113553551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10783339 + ... + 10783534.

Almost surely, 2^2113553554 is an apocalyptic number.

2113553554 is a deficient number, since it is larger than the sum of its proper divisors (1574381900).

2113553554 is a wasteful number, since it uses less digits than its factorization.

2113553554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21566889 (or 21566882 counting only the distinct ones).

The product of its digits is 45000, while the sum is 34.

The square root of 2113553554 is about 45973.4005050747. The cubic root of 2113553554 is about 1283.3282431387.

The spelling of 2113553554 in words is "two billion, one hundred thirteen million, five hundred fifty-three thousand, five hundred fifty-four".