2545656565452 has 288 divisors, whose sum is σ = 8252816818176. Its totient is φ = 593850216960.

The previous prime is 2545656565393. The next prime is 2545656565453.

2545656565452 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2545656565453) 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, 4628533 + ... + 5149235.

It is an arithmetic number, because the mean of its divisors is an integer number (28655613952).

Almost surely, 2^{2545656565452} is an apocalyptic number.

2545656565452 is a gapful number since it is divisible by the number (22) 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 2545656565452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4126408409088).

2545656565452 is an abundant number, since it is smaller than the sum of its proper divisors (5707160252724).

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

2545656565452 is a wasteful number, since it uses less digits than its factorization.

2545656565452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520789 (or 520776 counting only the distinct ones).

The product of its digits is 216000000, while the sum is 60.

The spelling of 2545656565452 in words is "two trillion, five hundred forty-five billion, six hundred fifty-six million, five hundred sixty-five thousand, four hundred fifty-two".