1556652241 has 4 divisors (see below), whose sum is σ = 1586023092. Its totient is φ = 1527281392.

The previous prime is 1556652221. The next prime is 1556652247. The reversal of 1556652241 is 1422566551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1337730625 + 218921616 = 36575^2 + 14796^2 .

It is a cyclic number.

It is not a de Polignac number, because 1556652241 - 2⁷ = 1556652113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1556652241.

It is not an unprimeable number, because it can be changed into a prime (1556652247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14685346 + ... + 14685451.

It is an arithmetic number, because the mean of its divisors is an integer number (396505773).

Almost surely, 2^1556652241 is an apocalyptic number.

It is an amenable number.

1556652241 is a deficient number, since it is larger than the sum of its proper divisors (29370851).

1556652241 is an equidigital number, since it uses as much as digits as its factorization.

1556652241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370850.

The product of its digits is 72000, while the sum is 37.

The square root of 1556652241 is about 39454.4324632860. The cubic root of 1556652241 is about 1158.9477777466.

The spelling of 1556652241 in words is "one billion, five hundred fifty-six million, six hundred fifty-two thousand, two hundred forty-one".