3542564561 has 2 divisors, whose sum is σ = 3542564562. Its totient is φ = 3542564560.

The previous prime is 3542564551. The next prime is 3542564563. The reversal of 3542564561 is 1654652453.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084470336 + 1458094225 = 45656^2 + 38185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3542564561 is a prime.

It is a super-3 number, since 3×3542564561³ (a number of 30 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 3542564563, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3542564563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771282280 + 1771282281.

It is an arithmetic number, because the mean of its divisors is an integer number (1771282281).

Almost surely, 2^3542564561 is an apocalyptic number.

It is an amenable number.

3542564561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3542564561 is an equidigital number, since it uses as much as digits as its factorization.

3542564561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 41.

The square root of 3542564561 is about 59519.4469144329. The cubic root of 3542564561 is about 1524.4245161386.

The spelling of 3542564561 in words is "three billion, five hundred forty-two million, five hundred sixty-four thousand, five hundred sixty-one".