2123553750 has 80 divisors (see below), whose sum is σ = 5325095424. Its totient is φ = 564372000.

The previous prime is 2123553737. The next prime is 2123553823. The reversal of 2123553750 is 573553212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1375479 + ... + 1377021.

Almost surely, 2^2123553750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123553750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2662547712).

2123553750 is an abundant number, since it is smaller than the sum of its proper divisors (3201541674).

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

2123553750 is a wasteful number, since it uses less digits than its factorization.

2123553750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 2123553750 is about 46082.0328327647. The cubic root of 2123553750 is about 1285.3490651364.

The spelling of 2123553750 in words is "two billion, one hundred twenty-three million, five hundred fifty-three thousand, seven hundred fifty".