2006553541 has 2 divisors, whose sum is σ = 2006553542. Its totient is φ = 2006553540.

The previous prime is 2006553517. The next prime is 2006553551. The reversal of 2006553541 is 1453556002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1796912100 + 209641441 = 42390^2 + 14479^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006553541 - 2⁵ = 2006553509 is a prime.

It is a super-2 number, since 2×2006553541² = 8052514225799277362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006553551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003276770 + 1003276771.

It is an arithmetic number, because the mean of its divisors is an integer number (1003276771).

Almost surely, 2^2006553541 is an apocalyptic number.

It is an amenable number.

2006553541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006553541 is an equidigital number, since it uses as much as digits as its factorization.

2006553541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 2006553541 is about 44794.5704410702. The cubic root of 2006553541 is about 1261.2957068841.

The spelling of 2006553541 in words is "two billion, six million, five hundred fifty-three thousand, five hundred forty-one".