1552663399 has 8 divisors (see below), whose sum is σ = 1817752608. Its totient is φ = 1298394240.

The previous prime is 1552663381. The next prime is 1552663403. The reversal of 1552663399 is 9933662551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1552663399 - 2⁵ = 1552663367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552663309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2704702 + ... + 2705275.

It is an arithmetic number, because the mean of its divisors is an integer number (227219076).

Almost surely, 2^1552663399 is an apocalyptic number.

1552663399 is a deficient number, since it is larger than the sum of its proper divisors (265089209).

1552663399 is an equidigital number, since it uses as much as digits as its factorization.

1552663399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410025.

The product of its digits is 1312200, while the sum is 49.

The square root of 1552663399 is about 39403.8500530088. The cubic root of 1552663399 is about 1157.9570161420.

The spelling of 1552663399 in words is "one billion, five hundred fifty-two million, six hundred sixty-three thousand, three hundred ninety-nine".