2545802784 has 240 divisors, whose sum is σ = 8612892288. Its totient is φ = 722608128.

The previous prime is 2545802783. The next prime is 2545802789. The reversal of 2545802784 is 4872085452.

2545802784 is a `hidden beast` number, since 2 + 545 + 8 + 0 + 27 + 84 = 666.

It is a super-2 number, since 2×2545802784² = 12962223630044301312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2545802783) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3501429 + ... + 3502155.

Almost surely, 2^2545802784 is an apocalyptic number.

2545802784 is a gapful number since it is divisible by the number (24) 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 2545802784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4306446144).

2545802784 is an abundant number, since it is smaller than the sum of its proper divisors (6067089504).

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

2545802784 is a wasteful number, since it uses less digits than its factorization.

2545802784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 2545802784 is about 50455.9489455902. The cubic root of 2545802784 is about 1365.4472245471.

The spelling of 2545802784 in words is "two billion, five hundred forty-five million, eight hundred two thousand, seven hundred eighty-four".