987263055 has 12 divisors (see below), whose sum is σ = 1711256040. Its totient is φ = 526540272.

The previous prime is 987263051. The next prime is 987263071. The reversal of 987263055 is 550362789.

It is a happy number.

987263055 is a `hidden beast` number, since 9 + 8 + 7 + 2 + 630 + 5 + 5 = 666.

It is not a de Polignac number, because 987263055 - 2² = 987263051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 21939179 = 987263055 / (9 + 8 + 7 + 2 + 6 + 3 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 987263055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987263051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10969545 + ... + 10969634.

It is an arithmetic number, because the mean of its divisors is an integer number (142604670).

Almost surely, 2^987263055 is an apocalyptic number.

987263055 is a deficient number, since it is larger than the sum of its proper divisors (723992985).

987263055 is a wasteful number, since it uses less digits than its factorization.

987263055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939190 (or 21939187 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 987263055 is about 31420.7424323487. The cubic root of 987263055 is about 995.7361974935.

It can be divided in two parts, 9872 and 63055, that added together give a palindrome (72927).

The spelling of 987263055 in words is "nine hundred eighty-seven million, two hundred sixty-three thousand, fifty-five".