87755500 has 48 divisors (see below), whose sum is σ = 219046464. Its totient is φ = 30086400.

The previous prime is 87755483. The next prime is 87755501. The reversal of 87755500 is 555778.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87755500.

It is not an unprimeable number, because it can be changed into a prime (87755501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9037 + ... + 16036.

It is an arithmetic number, because the mean of its divisors is an integer number (4563468).

Almost surely, 2^87755500 is an apocalyptic number.

It is an amenable number.

87755500 is an abundant number, since it is smaller than the sum of its proper divisors (131290964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87755500 is a wasteful number, since it uses less digits than its factorization.

87755500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25099 (or 25087 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 37.

The square root of 87755500 is about 9367.7905612796. The cubic root of 87755500 is about 444.3836942429.

The spelling of 87755500 in words is "eighty-seven million, seven hundred fifty-five thousand, five hundred".