87555049 has 8 divisors (see below), whose sum is σ = 94967208. Its totient is φ = 80394240.

The previous prime is 87555019. The next prime is 87555053. The reversal of 87555049 is 94055578.

It can be written as a sum of positive squares in 4 ways, for example, as 1600 + 87553449 = 40^2 + 9357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87555049 - 2⁷ = 87554921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87554996 and 87555014.

It is not an unprimeable number, because it can be changed into a prime (87555019) 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 7 ways as a sum of consecutive naturals, for example, 62112 + ... + 63505.

It is an arithmetic number, because the mean of its divisors is an integer number (11870901).

Almost surely, 2^87555049 is an apocalyptic number.

It is an amenable number.

87555049 is a deficient number, since it is larger than the sum of its proper divisors (7412159).

87555049 is a wasteful number, since it uses less digits than its factorization.

87555049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125675.

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 87555049 is about 9357.0854970979. The cubic root of 87555049 is about 444.0450827393.

The spelling of 87555049 in words is "eighty-seven million, five hundred fifty-five thousand, forty-nine".