2550723840 has 432 divisors, whose sum is σ = 10315888128. Its totient is φ = 569769984.

The previous prime is 2550723821. The next prime is 2550723841. The reversal of 2550723840 is 483270552.

2550723840 is a `hidden beast` number, since 2 + 550 + 7 + 23 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2550723795 and 2550723804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550723841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3789744 + ... + 3790416.

Almost surely, 2^2550723840 is an apocalyptic number.

2550723840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2550723840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5157944064).

2550723840 is an abundant number, since it is smaller than the sum of its proper divisors (7765164288).

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

2550723840 is a wasteful number, since it uses less digits than its factorization.

2550723840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2550723840 is about 50504.6912672476. The cubic root of 2550723840 is about 1366.3264648618.

The spelling of 2550723840 in words is "two billion, five hundred fifty million, seven hundred twenty-three thousand, eight hundred forty".