2123552004 has 108 divisors (see below), whose sum is σ = 6026310864. Its totient is φ = 580264608.

The previous prime is 2123551973. The next prime is 2123552009. The reversal of 2123552004 is 4002553212.

It is a super-2 number, since 2×2123552004² = 9018946227384832032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123552009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 307639 + ... + 314465.

Almost surely, 2^2123552004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123552004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3013155432).

2123552004 is an abundant number, since it is smaller than the sum of its proper divisors (3902758860).

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

2123552004 is a wasteful number, since it uses less digits than its factorization.

2123552004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894 (or 6862 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2123552004 is about 46082.0138882840. The cubic root of 2123552004 is about 1285.3487128621.

The spelling of 2123552004 in words is "two billion, one hundred twenty-three million, five hundred fifty-two thousand, four".