1530163555 has 4 divisors (see below), whose sum is σ = 1836196272. Its totient is φ = 1224130840.

The previous prime is 1530163541. The next prime is 1530163567. The reversal of 1530163555 is 5553610351.

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

It is a de Polignac number, because none of the positive numbers 2^k-1530163555 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 1530163555.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153016351 + ... + 153016360.

It is an arithmetic number, because the mean of its divisors is an integer number (459049068).

Almost surely, 2^1530163555 is an apocalyptic number.

1530163555 is a deficient number, since it is larger than the sum of its proper divisors (306032717).

1530163555 is an equidigital number, since it uses as much as digits as its factorization.

1530163555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306032716.

The product of its (nonzero) digits is 33750, while the sum is 34.

The square root of 1530163555 is about 39117.3050579919. The cubic root of 1530163555 is about 1152.3364106704.

The spelling of 1530163555 in words is "one billion, five hundred thirty million, one hundred sixty-three thousand, five hundred fifty-five".