87705255 has 16 divisors (see below), whose sum is σ = 153085824. Its totient is φ = 42523680.

The previous prime is 87705253. The next prime is 87705271. The reversal of 87705255 is 55250778.

It is not a de Polignac number, because 87705255 - 2¹ = 87705253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87705253) 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, 265609 + ... + 265938.

It is an arithmetic number, because the mean of its divisors is an integer number (9567864).

Almost surely, 2^87705255 is an apocalyptic number.

87705255 is a deficient number, since it is larger than the sum of its proper divisors (65380569).

87705255 is a wasteful number, since it uses less digits than its factorization.

87705255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531566.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 87705255 is about 9365.1083816473. The cubic root of 87705255 is about 444.2988664298.

The spelling of 87705255 in words is "eighty-seven million, seven hundred five thousand, two hundred fifty-five".