1055000051 has 4 divisors (see below), whose sum is σ = 1205714352. Its totient is φ = 904285752.

The previous prime is 1055000047. The next prime is 1055000081. The reversal of 1055000051 is 1500005501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055000051 - 2² = 1055000047 is a prime.

It is a super-2 number, since 2×1055000051² = 2226050215220005202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1054999993 and 1055000029.

It is not an unprimeable number, because it can be changed into a prime (1055000081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75357140 + ... + 75357153.

It is an arithmetic number, because the mean of its divisors is an integer number (301428588).

Almost surely, 2^1055000051 is an apocalyptic number.

1055000051 is a deficient number, since it is larger than the sum of its proper divisors (150714301).

1055000051 is an equidigital number, since it uses as much as digits as its factorization.

1055000051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150714300.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 1055000051 is about 32480.7643229035. The cubic root of 1055000051 is about 1018.0071466851.

Adding to 1055000051 its reverse (1500005501), we get a palindrome (2555005552).

The spelling of 1055000051 in words is "one billion, fifty-five million, fifty-one", and thus it is an aban number and an uban number.