1050555551 has 4 divisors (see below), whose sum is σ = 1052310000. Its totient is φ = 1048801104.

The previous prime is 1050555533. The next prime is 1050555553. The reversal of 1050555551 is 1555550501.

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 1050555551 - 2¹⁴ = 1050539167 is a prime.

It is a super-2 number, since 2×1050555551² = 2207333931473827202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050555553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876326 + ... + 877523.

It is an arithmetic number, because the mean of its divisors is an integer number (263077500).

Almost surely, 2^1050555551 is an apocalyptic number.

1050555551 is a deficient number, since it is larger than the sum of its proper divisors (1754449).

1050555551 is an equidigital number, since it uses as much as digits as its factorization.

1050555551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754448.

The product of its (nonzero) digits is 15625, while the sum is 32.

The square root of 1050555551 is about 32412.2746964788. The cubic root of 1050555551 is about 1016.5755823562.

The spelling of 1050555551 in words is "one billion, fifty million, five hundred fifty-five thousand, five hundred fifty-one".