2506003573 has 2 divisors, whose sum is σ = 2506003574. Its totient is φ = 2506003572.

The previous prime is 2506003567. The next prime is 2506003601. The reversal of 2506003573 is 3753006052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1964882929 + 541120644 = 44327^2 + 23262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506003573 - 2²⁵ = 2472449141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500003573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253001786 + 1253001787.

It is an arithmetic number, because the mean of its divisors is an integer number (1253001787).

Almost surely, 2^2506003573 is an apocalyptic number.

It is an amenable number.

2506003573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506003573 is an equidigital number, since it uses as much as digits as its factorization.

2506003573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 2506003573 is about 50059.9997303236. Note that the first 3 decimals coincide. The cubic root of 2506003573 is about 1358.2943534283.

The spelling of 2506003573 in words is "two billion, five hundred six million, three thousand, five hundred seventy-three".