1051228555 has 32 divisors (see below), whose sum is σ = 1410409728. Its totient is φ = 747187200.

The previous prime is 1051228531. The next prime is 1051228559. The reversal of 1051228555 is 5558221501.

It is not a de Polignac number, because 1051228555 - 2⁹ = 1051228043 is a prime.

It is a super-2 number, since 2×1051228555² = 2210162949694776050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051228555.

It is not an unprimeable number, because it can be changed into a prime (1051228559) 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 31 ways as a sum of consecutive naturals, for example, 183535 + ... + 189175.

It is an arithmetic number, because the mean of its divisors is an integer number (44075304).

Almost surely, 2^1051228555 is an apocalyptic number.

1051228555 is a deficient number, since it is larger than the sum of its proper divisors (359181173).

1051228555 is a wasteful number, since it uses less digits than its factorization.

1051228555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its (nonzero) digits is 20000, while the sum is 34.

The square root of 1051228555 is about 32422.6549653171. The cubic root of 1051228555 is about 1016.7926146333.

The spelling of 1051228555 in words is "one billion, fifty-one million, two hundred twenty-eight thousand, five hundred fifty-five".