2545440445452 has 48 divisors (see below), whose sum is σ = 5976077732352. Its totient is φ = 843236866560.

The previous prime is 2545440445451. The next prime is 2545440445463.

2545440445452 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2545440445452² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2545440445451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10507452 + ... + 10746972.

It is an arithmetic number, because the mean of its divisors is an integer number (124501619424).

Almost surely, 2^{2545440445452} is an apocalyptic number.

It is an amenable number.

2545440445452 is an abundant number, since it is smaller than the sum of its proper divisors (3430637286900).

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

2545440445452 is a wasteful number, since it uses less digits than its factorization.

2545440445452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244998 (or 244996 counting only the distinct ones).

The product of its (nonzero) digits is 10240000, while the sum is 48.

The spelling of 2545440445452 in words is "two trillion, five hundred forty-five billion, four hundred forty million, four hundred forty-five thousand, four hundred fifty-two".