2573746081 has 2 divisors, whose sum is σ = 2573746082. Its totient is φ = 2573746080.

The previous prime is 2573746079. The next prime is 2573746111. The reversal of 2573746081 is 1806473752.

2573746081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2492006400 + 81739681 = 49920^2 + 9041^2 .

It is a cyclic number.

It is not a de Polignac number, because 2573746081 - 2¹ = 2573746079 is a prime.

It is a super-2 number, since 2×2573746081² = 13248337778925717122, which contains 22 as substring.

Together with 2573746079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2573746481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286873040 + 1286873041.

It is an arithmetic number, because the mean of its divisors is an integer number (1286873041).

Almost surely, 2^2573746081 is an apocalyptic number.

It is an amenable number.

2573746081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2573746081 is an equidigital number, since it uses as much as digits as its factorization.

2573746081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 2573746081 is about 50732.1010899411. The cubic root of 2573746081 is about 1370.4248741709.

The spelling of 2573746081 in words is "two billion, five hundred seventy-three million, seven hundred forty-six thousand, eighty-one".