1055278540 has 24 divisors (see below), whose sum is σ = 2217372192. Its totient is φ = 421866240.

The previous prime is 1055278537. The next prime is 1055278559. The reversal of 1055278540 is 458725501.

It is a super-2 number, since 2×1055278540² = 2227225593969063200, 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 1055278540.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22212 + ... + 51028.

It is an arithmetic number, because the mean of its divisors is an integer number (92390508).

Almost surely, 2^1055278540 is an apocalyptic number.

1055278540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055278540 is an abundant number, since it is smaller than the sum of its proper divisors (1162093652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055278540 is a wasteful number, since it uses less digits than its factorization.

1055278540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30657 (or 30655 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 1055278540 is about 32485.0510235093. The cubic root of 1055278540 is about 1018.0967134582.

The spelling of 1055278540 in words is "one billion, fifty-five million, two hundred seventy-eight thousand, five hundred forty".