2545431204401 has 2 divisors, whose sum is σ = 2545431204402. Its totient is φ = 2545431204400.

The previous prime is 2545431204361. The next prime is 2545431204419. The reversal of 2545431204401 is 1044021345452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2486058572176 + 59372632225 = 1576724^2 + 243665^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545431204401 - 2¹⁰ = 2545431203377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545431204601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272715602200 + 1272715602201.

It is an arithmetic number, because the mean of its divisors is an integer number (1272715602201).

Almost surely, 2^{2545431204401} is an apocalyptic number.

It is an amenable number.

2545431204401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545431204401 is an equidigital number, since it uses as much as digits as its factorization.

2545431204401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2545431204401 its reverse (1044021345452), we get a palindrome (3589452549853).

The spelling of 2545431204401 in words is "two trillion, five hundred forty-five billion, four hundred thirty-one million, two hundred four thousand, four hundred one".