3663520501 has 2 divisors, whose sum is σ = 3663520502. Its totient is φ = 3663520500.

The previous prime is 3663520481. The next prime is 3663520507. The reversal of 3663520501 is 1050253663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3541440100 + 122080401 = 59510^2 + 11049^2 .

It is a cyclic number.

It is not a de Polignac number, because 3663520501 - 2⁹ = 3663519989 is a prime.

It is a super-2 number, since 2×3663520501² = 26842764922494582002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3663520507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831760250 + 1831760251.

It is an arithmetic number, because the mean of its divisors is an integer number (1831760251).

Almost surely, 2^3663520501 is an apocalyptic number.

It is an amenable number.

3663520501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3663520501 is an equidigital number, since it uses as much as digits as its factorization.

3663520501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 3663520501 is about 60527.0228988672. The cubic root of 3663520501 is about 1541.5805021016.

The spelling of 3663520501 in words is "three billion, six hundred sixty-three million, five hundred twenty thousand, five hundred one".