2123550004 has 6 divisors (see below), whose sum is σ = 3716212514. Its totient is φ = 1061775000.

The previous prime is 2123550001. The next prime is 2123550031. The reversal of 2123550004 is 4000553212.

It can be written as a sum of positive squares in only one way, i.e., 1949045904 + 174504100 = 44148^2 + 13210^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123550001) 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 as a sum of consecutive naturals, namely, 265443747 + ... + 265443754.

Almost surely, 2^2123550004 is an apocalyptic number.

It is an amenable number.

2123550004 is a deficient number, since it is larger than the sum of its proper divisors (1592662510).

2123550004 is a wasteful number, since it uses less digits than its factorization.

2123550004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530887505 (or 530887503 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2123550004 is about 46081.9921878384. The cubic root of 2123550004 is about 1285.3483093403.

The spelling of 2123550004 in words is "two billion, one hundred twenty-three million, five hundred fifty thousand, four".