2549322720 has 1152 divisors, whose sum is σ = 11887948800. Its totient is φ = 501645312.

The previous prime is 2549322683. The next prime is 2549322751. The reversal of 2549322720 is 272239452.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 87907666 + ... + 87907694.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^2549322720 is an apocalyptic number.

2549322720 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 2549322720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5943974400).

2549322720 is an abundant number, since it is smaller than the sum of its proper divisors (9338626080).

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

2549322720 is a wasteful number, since it uses less digits than its factorization.

2549322720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 2549322720 is about 50490.8181751890. The cubic root of 2549322720 is about 1366.0762433444.

The spelling of 2549322720 in words is "two billion, five hundred forty-nine million, three hundred twenty-two thousand, seven hundred twenty".