1005500505547 has 4 divisors (see below), whose sum is σ = 1010710352920. Its totient is φ = 1000290658176.

The previous prime is 1005500505533. The next prime is 1005500505551. The reversal of 1005500505547 is 7455050055001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005500505547 is a prime.

It is a super-2 number, since 2×1005500505547² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005500505557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2604923397 + ... + 2604923782.

It is an arithmetic number, because the mean of its divisors is an integer number (252677588230).

Almost surely, 2^{1005500505547} is an apocalyptic number.

1005500505547 is a deficient number, since it is larger than the sum of its proper divisors (5209847373).

1005500505547 is an equidigital number, since it uses as much as digits as its factorization.

1005500505547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209847372.

The product of its (nonzero) digits is 87500, while the sum is 37.

The spelling of 1005500505547 in words is "one trillion, five billion, five hundred million, five hundred five thousand, five hundred forty-seven".