87055534 has 4 divisors (see below), whose sum is σ = 130583304. Its totient is φ = 43527766.

The previous prime is 87055531. The next prime is 87055543. The reversal of 87055534 is 43555078.

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

It is a junction number, because it is equal to n+sod(n) for n = 87055493 and 87055502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87055531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21763882 + ... + 21763885.

It is an arithmetic number, because the mean of its divisors is an integer number (32645826).

Almost surely, 2^87055534 is an apocalyptic number.

87055534 is a deficient number, since it is larger than the sum of its proper divisors (43527770).

87055534 is a wasteful number, since it uses less digits than its factorization.

87055534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43527769.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 87055534 is about 9330.3555130552. The cubic root of 87055534 is about 443.1990232648.

The spelling of 87055534 in words is "eighty-seven million, fifty-five thousand, five hundred thirty-four".