2545604447 has 2 divisors, whose sum is σ = 2545604448. Its totient is φ = 2545604446.

The previous prime is 2545604407. The next prime is 2545604461. The reversal of 2545604447 is 7444065452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545604447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545604407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272802223 + 1272802224.

It is an arithmetic number, because the mean of its divisors is an integer number (1272802224).

Almost surely, 2^2545604447 is an apocalyptic number.

2545604447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545604447 is an equidigital number, since it uses as much as digits as its factorization.

2545604447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 41.

The square root of 2545604447 is about 50453.9834601788. The cubic root of 2545604447 is about 1365.4117641230.

Adding to 2545604447 its reverse (7444065452), we get a palindrome (9989669899).

The spelling of 2545604447 in words is "two billion, five hundred forty-five million, six hundred four thousand, four hundred forty-seven".