2542585481 has 2 divisors, whose sum is σ = 2542585482. Its totient is φ = 2542585480.

The previous prime is 2542585429. The next prime is 2542585519. The reversal of 2542585481 is 1845852452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1575375481 + 967210000 = 39691^2 + 31100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542585481 - 2⁶ = 2542585417 is a prime.

It is a super-2 number, since 2×2542585481² = 12929481856384002722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2532585481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271292740 + 1271292741.

It is an arithmetic number, because the mean of its divisors is an integer number (1271292741).

Almost surely, 2^2542585481 is an apocalyptic number.

It is an amenable number.

2542585481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542585481 is an equidigital number, since it uses as much as digits as its factorization.

2542585481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512000, while the sum is 44.

The square root of 2542585481 is about 50424.0565702523. The cubic root of 2542585481 is about 1364.8717794287.

The spelling of 2542585481 in words is "two billion, five hundred forty-two million, five hundred eighty-five thousand, four hundred eighty-one".