1055278543 has 16 divisors (see below), whose sum is σ = 1173340800. Its totient is φ = 940978080.

The previous prime is 1055278537. The next prime is 1055278559. The reversal of 1055278543 is 3458725501.

It is a cyclic number.

It is not a de Polignac number, because 1055278543 - 2¹³ = 1055270351 is a prime.

It is a super-2 number, since 2×1055278543² = 2227225606632405698, 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 = 1055278496 and 1055278505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055278513) 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 15 ways as a sum of consecutive naturals, for example, 337873 + ... + 340981.

It is an arithmetic number, because the mean of its divisors is an integer number (73333800).

Almost surely, 2^1055278543 is an apocalyptic number.

1055278543 is a deficient number, since it is larger than the sum of its proper divisors (118062257).

1055278543 is a wasteful number, since it uses less digits than its factorization.

1055278543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 1055278543 is about 32485.0510696843. The cubic root of 1055278543 is about 1018.0967144230.

The spelling of 1055278543 in words is "one billion, fifty-five million, two hundred seventy-eight thousand, five hundred forty-three".