732563281 has 2 divisors, whose sum is σ = 732563282. Its totient is φ = 732563280.

The previous prime is 732563257. The next prime is 732563309. The reversal of 732563281 is 182365237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587577600 + 144985681 = 24240^2 + 12041^2 .

It is an emirp because it is prime and its reverse (182365237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 732563281 - 2⁹ = 732562769 is a prime.

It is a super-2 number, since 2×732563281² = 1073297921338969922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 732563281.

It is not a weakly prime, because it can be changed into another prime (732563081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 366281640 + 366281641.

It is an arithmetic number, because the mean of its divisors is an integer number (366281641).

Almost surely, 2^732563281 is an apocalyptic number.

It is an amenable number.

732563281 is a deficient number, since it is larger than the sum of its proper divisors (1).

732563281 is an equidigital number, since it uses as much as digits as its factorization.

732563281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 732563281 is about 27065.9062475285. The cubic root of 732563281 is about 901.4639880894.

The spelling of 732563281 in words is "seven hundred thirty-two million, five hundred sixty-three thousand, two hundred eighty-one".