2537665573 has 2 divisors, whose sum is σ = 2537665574. Its totient is φ = 2537665572.

The previous prime is 2537665541. The next prime is 2537665577. The reversal of 2537665573 is 3755667352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2187152289 + 350513284 = 46767^2 + 18722^2 .

It is a cyclic number.

It is not a de Polignac number, because 2537665573 - 2⁵ = 2537665541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2537665577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268832786 + 1268832787.

It is an arithmetic number, because the mean of its divisors is an integer number (1268832787).

Almost surely, 2^2537665573 is an apocalyptic number.

It is an amenable number.

2537665573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2537665573 is an equidigital number, since it uses as much as digits as its factorization.

2537665573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3969000, while the sum is 49.

The square root of 2537665573 is about 50375.2476222202. The cubic root of 2537665573 is about 1363.9908677863.

The spelling of 2537665573 in words is "two billion, five hundred thirty-seven million, six hundred sixty-five thousand, five hundred seventy-three".