252041661337 has 2 divisors, whose sum is σ = 252041661338. Its totient is φ = 252041661336.

The previous prime is 252041661299. The next prime is 252041661367. The reversal of 252041661337 is 733166140252.

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., 150869319561 + 101172341776 = 388419^2 + 318076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252041661337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252041661337.

It is not a weakly prime, because it can be changed into another prime (252041661367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126020830668 + 126020830669.

It is an arithmetic number, because the mean of its divisors is an integer number (126020830669).

Almost surely, 2^252041661337 is an apocalyptic number.

It is an amenable number.

252041661337 is a deficient number, since it is larger than the sum of its proper divisors (1).

252041661337 is an equidigital number, since it uses as much as digits as its factorization.

252041661337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 252041661337 in words is "two hundred fifty-two billion, forty-one million, six hundred sixty-one thousand, three hundred thirty-seven".