2549442064 has 45 divisors (see below), whose sum is σ = 5354251149. Its totient is φ = 1175453760.

The previous prime is 2549442037. The next prime is 2549442083. The reversal of 2549442064 is 4602449452.

The square root of 2549442064 is 50492.

It is a perfect power (a square), and thus also a powerful number.

2549442064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 377136400 + 2172305664 = 19420^2 + 46608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2625099 + ... + 2626069.

Almost surely, 2^2549442064 is an apocalyptic number.

2549442064 is the 50492-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549442064

2549442064 is an abundant number, since it is smaller than the sum of its proper divisors (2804809085).

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

2549442064 is an frugal number, since it uses more digits than its factorization.

2549442064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The cubic root of 2549442064 is about 1366.0975601773.

The spelling of 2549442064 in words is "two billion, five hundred forty-nine million, four hundred forty-two thousand, sixty-four".