1005510000494 has 4 divisors (see below), whose sum is σ = 1508265000744. Its totient is φ = 502755000246.

The previous prime is 1005510000491. The next prime is 1005510000503. The reversal of 1005510000494 is 4940000155001.

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

It is a super-2 number, since 2×1005510000494² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005510000491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251377500122 + ... + 251377500125.

It is an arithmetic number, because the mean of its divisors is an integer number (377066250186).

Almost surely, 2^{1005510000494} is an apocalyptic number.

1005510000494 is a deficient number, since it is larger than the sum of its proper divisors (502755000250).

1005510000494 is an equidigital number, since it uses as much as digits as its factorization.

1005510000494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502755000249.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 1005510000494 its reverse (4940000155001), we get a palindrome (5945510155495).

The spelling of 1005510000494 in words is "one trillion, five billion, five hundred ten million, four hundred ninety-four", and thus it is an aban number.