63602261 has 2 divisors, whose sum is σ = 63602262. Its totient is φ = 63602260.

The previous prime is 63602207. The next prime is 63602303. The reversal of 63602261 is 16220636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57002500 + 6599761 = 7550^2 + 2569^2 .

It is a cyclic number.

It is not a de Polignac number, because 63602261 - 2¹⁸ = 63340117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63602261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63605261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31801130 + 31801131.

It is an arithmetic number, because the mean of its divisors is an integer number (31801131).

Almost surely, 2^63602261 is an apocalyptic number.

It is an amenable number.

63602261 is a deficient number, since it is larger than the sum of its proper divisors (1).

63602261 is an equidigital number, since it uses as much as digits as its factorization.

63602261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 63602261 is about 7975.1025698733. The cubic root of 63602261 is about 399.1696545923.

Adding to 63602261 its reverse (16220636), we get a palindrome (79822897).

The spelling of 63602261 in words is "sixty-three million, six hundred two thousand, two hundred sixty-one".