2545990272 has 512 divisors, whose sum is σ = 9400320000. Its totient is φ = 661893120.

The previous prime is 2545990259. The next prime is 2545990273. The reversal of 2545990272 is 2720995452.

2545990272 is a `hidden beast` number, since 2 + 54 + 599 + 0 + 2 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545990273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13329697 + ... + 13329887.

It is an arithmetic number, because the mean of its divisors is an integer number (18360000).

Almost surely, 2^2545990272 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 2545990272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4700160000).

2545990272 is an abundant number, since it is smaller than the sum of its proper divisors (6854329728).

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

2545990272 is a wasteful number, since it uses less digits than its factorization.

2545990272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 2545990272 is about 50457.8068488911. The cubic root of 2545990272 is about 1365.4807435988.

The spelling of 2545990272 in words is "two billion, five hundred forty-five million, nine hundred ninety thousand, two hundred seventy-two".