2145554504 has 16 divisors (see below), whose sum is σ = 4058517420. Its totient is φ = 1063283200.

The previous prime is 2145554459. The next prime is 2145554507. The reversal of 2145554504 is 4054555412.

It can be written as a sum of positive squares in 2 ways, for example, as 2125394404 + 20160100 = 46102^2 + 4490^2 .

It is not an unprimeable number, because it can be changed into a prime (2145554507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185797 + ... + 1187604.

Almost surely, 2^2145554504 is an apocalyptic number.

It is an amenable number.

2145554504 is a deficient number, since it is larger than the sum of its proper divisors (1912962916).

2145554504 is a wasteful number, since it uses less digits than its factorization.

2145554504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373520 (or 2373516 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 2145554504 is about 46320.1306561197. The cubic root of 2145554504 is about 1289.7727107918.

The spelling of 2145554504 in words is "two billion, one hundred forty-five million, five hundred fifty-four thousand, five hundred four".