1087944255 has 24 divisors (see below), whose sum is σ = 1888399968. Its totient is φ = 579427776.

The previous prime is 1087944241. The next prime is 1087944269. The reversal of 1087944255 is 5524497801.

It is a Cunningham number, because it is equal to 32984²-1.

It is an interprime number because it is at equal distance from previous prime (1087944241) and next prime (1087944269).

It is not a de Polignac number, because 1087944255 - 2⁴ = 1087944239 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 1087944255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16494 + ... + 49476.

It is an arithmetic number, because the mean of its divisors is an integer number (78683332).

Almost surely, 2^1087944255 is an apocalyptic number.

1087944255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1087944255 is a deficient number, since it is larger than the sum of its proper divisors (800455713).

1087944255 is a wasteful number, since it uses less digits than its factorization.

1087944255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33727 (or 33724 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 1087944255 is about 32983.9999848411. Note that the first 4 decimals coincide. The cubic root of 1087944255 is about 1028.4950702657.

The spelling of 1087944255 in words is "one billion, eighty-seven million, nine hundred forty-four thousand, two hundred fifty-five".