1078590555 has 96 divisors (see below), whose sum is σ = 2192486400. Its totient is φ = 480370176.

The previous prime is 1078590523. The next prime is 1078590581. The reversal of 1078590555 is 5550958701.

1078590555 is a `hidden beast` number, since 1 + 0 + 7 + 8 + 5 + 90 + 555 = 666.

It is not a de Polignac number, because 1078590555 - 2⁵ = 1078590523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1078590555.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2214522 + ... + 2215008.

It is an arithmetic number, because the mean of its divisors is an integer number (22838400).

Almost surely, 2^1078590555 is an apocalyptic number.

1078590555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1078590555 is an abundant number, since it is smaller than the sum of its proper divisors (1113895845).

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

1078590555 is a wasteful number, since it uses less digits than its factorization.

1078590555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 45.

The square root of 1078590555 is about 32841.9024266257. The cubic root of 1078590555 is about 1025.5390557387.

The spelling of 1078590555 in words is "one billion, seventy-eight million, five hundred ninety thousand, five hundred fifty-five".