87563755 has 16 divisors (see below), whose sum is σ = 106886304. Its totient is φ = 68853760.

The previous prime is 87563717. The next prime is 87563797. The reversal of 87563755 is 55736578.

It is a de Polignac number, because none of the positive numbers 2^k-87563755 is a prime.

It is a super-2 number, since 2×87563755² = 15334822379400050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106245 + ... + 107065.

It is an arithmetic number, because the mean of its divisors is an integer number (6680394).

Almost surely, 2^87563755 is an apocalyptic number.

87563755 is a deficient number, since it is larger than the sum of its proper divisors (19322549).

87563755 is a wasteful number, since it uses less digits than its factorization.

87563755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166.

The product of its digits is 882000, while the sum is 46.

The square root of 87563755 is about 9357.5506944927. The cubic root of 87563755 is about 444.0598000644.

The spelling of 87563755 in words is "eighty-seven million, five hundred sixty-three thousand, seven hundred fifty-five".