2543475551 has 2 divisors, whose sum is σ = 2543475552. Its totient is φ = 2543475550.

The previous prime is 2543475521. The next prime is 2543475589. The reversal of 2543475551 is 1555743452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2543475551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2543475499 and 2543475508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543475521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271737775 + 1271737776.

It is an arithmetic number, because the mean of its divisors is an integer number (1271737776).

Almost surely, 2^2543475551 is an apocalyptic number.

2543475551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543475551 is an equidigital number, since it uses as much as digits as its factorization.

2543475551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 41.

The square root of 2543475551 is about 50432.8816448158. The cubic root of 2543475551 is about 1365.0310254278.

The spelling of 2543475551 in words is "two billion, five hundred forty-three million, four hundred seventy-five thousand, five hundred fifty-one".