1054556005 has 4 divisors (see below), whose sum is σ = 1265467212. Its totient is φ = 843644800.

The previous prime is 1054555987. The next prime is 1054556051. The reversal of 1054556005 is 5006554501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5006554501 = 13 ⋅385119577.

It can be written as a sum of positive squares in 2 ways, for example, as 662238756 + 392317249 = 25734^2 + 19807^2 .

It is not a de Polignac number, because 1054556005 - 2¹¹ = 1054553957 is a prime.

It is a super-2 number, since 2×1054556005² = 2224176735363120050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 105455596 + ... + 105455605.

It is an arithmetic number, because the mean of its divisors is an integer number (316366803).

Almost surely, 2^1054556005 is an apocalyptic number.

It is an amenable number.

1054556005 is a deficient number, since it is larger than the sum of its proper divisors (210911207).

1054556005 is an equidigital number, since it uses as much as digits as its factorization.

1054556005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210911206.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1054556005 is about 32473.9280808466. The cubic root of 1054556005 is about 1017.8643013722.

The spelling of 1054556005 in words is "one billion, fifty-four million, five hundred fifty-six thousand, five".