1552661303 has 4 divisors (see below), whose sum is σ = 1594625160. Its totient is φ = 1510697448.

The previous prime is 1552661273. The next prime is 1552661351. The reversal of 1552661303 is 3031662551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3031662551 = 103 ⋅29433617.

It is a cyclic number.

It is not a de Polignac number, because 1552661303 - 2²² = 1548466999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1552661303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552661353) 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 in 3 ways as a sum of consecutive naturals, for example, 20981873 + ... + 20981946.

It is an arithmetic number, because the mean of its divisors is an integer number (398656290).

Almost surely, 2^1552661303 is an apocalyptic number.

1552661303 is a deficient number, since it is larger than the sum of its proper divisors (41963857).

1552661303 is an equidigital number, since it uses as much as digits as its factorization.

1552661303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41963856.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1552661303 is about 39403.8234566140. The cubic root of 1552661303 is about 1157.9564950849.

The spelling of 1552661303 in words is "one billion, five hundred fifty-two million, six hundred sixty-one thousand, three hundred three".