87054513 has 16 divisors (see below), whose sum is σ = 142859136. Its totient is φ = 45918720.

The previous prime is 87054511. The next prime is 87054571. The reversal of 87054513 is 31545078.

It is not a de Polignac number, because 87054513 - 2¹ = 87054511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87054511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159168 + ... + 159713.

It is an arithmetic number, because the mean of its divisors is an integer number (8928696).

Almost surely, 2^87054513 is an apocalyptic number.

It is an amenable number.

87054513 is a deficient number, since it is larger than the sum of its proper divisors (55804623).

87054513 is a wasteful number, since it uses less digits than its factorization.

87054513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318904.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 87054513 is about 9330.3007990096. The cubic root of 87054513 is about 443.1972906238.

The spelling of 87054513 in words is "eighty-seven million, fifty-four thousand, five hundred thirteen".