2506640573 has 2 divisors, whose sum is σ = 2506640574. Its totient is φ = 2506640572.

The previous prime is 2506640561. The next prime is 2506640597. The reversal of 2506640573 is 3750466052.

2506640573 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., 1853991364 + 652649209 = 43058^2 + 25547^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506640573 - 2⁴ = 2506640557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2506640503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253320286 + 1253320287.

It is an arithmetic number, because the mean of its divisors is an integer number (1253320287).

Almost surely, 2^2506640573 is an apocalyptic number.

It is an amenable number.

2506640573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506640573 is an equidigital number, since it uses as much as digits as its factorization.

2506640573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 2506640573 is about 50066.3616912593. The cubic root of 2506640573 is about 1358.4094317694.

The spelling of 2506640573 in words is "two billion, five hundred six million, six hundred forty thousand, five hundred seventy-three".