2545785396 has 288 divisors, whose sum is σ = 8478207360. Its totient is φ = 653184000.

The previous prime is 2545785391. The next prime is 2545785401. The reversal of 2545785396 is 6935875452.

2545785396 is a `hidden beast` number, since 2 + 54 + 57 + 8 + 539 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (2545785391) and next prime (2545785401).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545785391) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5879196 + ... + 5879628.

It is an arithmetic number, because the mean of its divisors is an integer number (29438220).

Almost surely, 2^2545785396 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 2545785396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4239103680).

2545785396 is an abundant number, since it is smaller than the sum of its proper divisors (5932421964).

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

2545785396 is a wasteful number, since it uses less digits than its factorization.

2545785396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 557 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The square root of 2545785396 is about 50455.7766365755. The cubic root of 2545785396 is about 1365.4441158420. Note that the first 3 decimals are identical.

2545785396 divided by its sum of digits (54) gives a palindrome (47144174).

The spelling of 2545785396 in words is "two billion, five hundred forty-five million, seven hundred eighty-five thousand, three hundred ninety-six".