537773081 has 2 divisors, whose sum is σ = 537773082. Its totient is φ = 537773080.

The previous prime is 537773039. The next prime is 537773083. The reversal of 537773081 is 180377735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388444681 + 149328400 = 19709^2 + 12220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537773081 is a prime.

It is a super-2 number, since 2×537773081² = 578399773296465122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 537773083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (537773083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268886540 + 268886541.

It is an arithmetic number, because the mean of its divisors is an integer number (268886541).

Almost surely, 2^537773081 is an apocalyptic number.

It is an amenable number.

537773081 is a deficient number, since it is larger than the sum of its proper divisors (1).

537773081 is an equidigital number, since it uses as much as digits as its factorization.

537773081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 537773081 is about 23189.9349071963. The cubic root of 537773081 is about 813.2043374470.

The spelling of 537773081 in words is "five hundred thirty-seven million, seven hundred seventy-three thousand, eighty-one".