5665572001 has 2 divisors, whose sum is σ = 5665572002. Its totient is φ = 5665572000.

The previous prime is 5665571993. The next prime is 5665572013. The reversal of 5665572001 is 1002755665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5652784225 + 12787776 = 75185^2 + 3576^2 .

It is a cyclic number.

It is not a de Polignac number, because 5665572001 - 2³ = 5665571993 is a prime.

It is not a weakly prime, because it can be changed into another prime (5665572061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832786000 + 2832786001.

It is an arithmetic number, because the mean of its divisors is an integer number (2832786001).

Almost surely, 2^5665572001 is an apocalyptic number.

It is an amenable number.

5665572001 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665572001 is an equidigital number, since it uses as much as digits as its factorization.

5665572001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 5665572001 is about 75269.9940281650. The cubic root of 5665572001 is about 1782.7122730440.

The spelling of 5665572001 in words is "five billion, six hundred sixty-five million, five hundred seventy-two thousand, one".