537722641 has 2 divisors, whose sum is σ = 537722642. Its totient is φ = 537722640.

The previous prime is 537722617. The next prime is 537722657. The reversal of 537722641 is 146227735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318801025 + 218921616 = 17855^2 + 14796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537722641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 537722641.

It is not a weakly prime, because it can be changed into another prime (537722041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268861320 + 268861321.

It is an arithmetic number, because the mean of its divisors is an integer number (268861321).

Almost surely, 2^537722641 is an apocalyptic number.

It is an amenable number.

537722641 is a deficient number, since it is larger than the sum of its proper divisors (1).

537722641 is an equidigital number, since it uses as much as digits as its factorization.

537722641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 37.

The square root of 537722641 is about 23188.8473409094. The cubic root of 537722641 is about 813.1789120332.

The spelling of 537722641 in words is "five hundred thirty-seven million, seven hundred twenty-two thousand, six hundred forty-one".