87255529 has 4 divisors (see below), whose sum is σ = 87295876. Its totient is φ = 87215184.

The previous prime is 87255479. The next prime is 87255541. The reversal of 87255529 is 92555278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30780304 + 56475225 = 5548^2 + 7515^2 .

It is a cyclic number.

It is not a de Polignac number, because 87255529 - 2⁷ = 87255401 is a prime.

It is a super-2 number, since 2×87255529² = 15227054682139682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87255569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16734 + ... + 21319.

It is an arithmetic number, because the mean of its divisors is an integer number (21823969).

Almost surely, 2^87255529 is an apocalyptic number.

It is an amenable number.

87255529 is a deficient number, since it is larger than the sum of its proper divisors (40347).

87255529 is a wasteful number, since it uses less digits than its factorization.

87255529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40346.

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

The square root of 87255529 is about 9341.0668020307. The cubic root of 87255529 is about 443.5381546774.

The spelling of 87255529 in words is "eighty-seven million, two hundred fifty-five thousand, five hundred twenty-nine".