1000054555 has 4 divisors (see below), whose sum is σ = 1200065472. Its totient is φ = 800043640.

The previous prime is 1000054547. The next prime is 1000054567. The reversal of 1000054555 is 5554500001.

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

It is not a de Polignac number, because 1000054555 - 2³ = 1000054547 is a prime.

It is a super-2 number, since 2×1000054555² = 2000218225952496050, which contains 22 as substring.

It is a Duffinian 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, 100005451 + ... + 100005460.

It is an arithmetic number, because the mean of its divisors is an integer number (300016368).

Almost surely, 2^1000054555 is an apocalyptic number.

1000054555 is a deficient number, since it is larger than the sum of its proper divisors (200010917).

1000054555 is an equidigital number, since it uses as much as digits as its factorization.

1000054555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200010916.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 1000054555 is about 31623.6391802082. The cubic root of 1000054555 is about 1000.0181846693.

Adding to 1000054555 its reverse (5554500001), we get a palindrome (6554554556).

The spelling of 1000054555 in words is "one billion, fifty-four thousand, five hundred fifty-five".