1553005505 has 8 divisors (see below), whose sum is σ = 1973230632. Its totient is φ = 1169321728.

The previous prime is 1553005499. The next prime is 1553005541. The reversal of 1553005505 is 5055003551.

It can be written as a sum of positive squares in 4 ways, for example, as 632975281 + 920030224 = 25159^2 + 30332^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553005505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9135242 + ... + 9135411.

It is an arithmetic number, because the mean of its divisors is an integer number (246653829).

Almost surely, 2^1553005505 is an apocalyptic number.

It is an amenable number.

1553005505 is a deficient number, since it is larger than the sum of its proper divisors (420225127).

1553005505 is a wasteful number, since it uses less digits than its factorization.

1553005505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18270675.

The product of its (nonzero) digits is 9375, while the sum is 29.

The square root of 1553005505 is about 39408.1908364238. The cubic root of 1553005505 is about 1158.0420560272.

The spelling of 1553005505 in words is "one billion, five hundred fifty-three million, five thousand, five hundred five".