87540755 has 4 divisors (see below), whose sum is σ = 105048912. Its totient is φ = 70032600.

The previous prime is 87540751. The next prime is 87540757. The reversal of 87540755 is 55704578.

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

It is not a de Polignac number, because 87540755 - 2² = 87540751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87540751) 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 in 3 ways as a sum of consecutive naturals, for example, 8754071 + ... + 8754080.

It is an arithmetic number, because the mean of its divisors is an integer number (26262228).

Almost surely, 2^87540755 is an apocalyptic number.

87540755 is a deficient number, since it is larger than the sum of its proper divisors (17508157).

87540755 is a wasteful number, since it uses less digits than its factorization.

87540755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17508156.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 87540755 is about 9356.3216597122. The cubic root of 87540755 is about 444.0209168919.

The spelling of 87540755 in words is "eighty-seven million, five hundred forty thousand, seven hundred fifty-five".