87200525555505 has 12 divisors (see below), whose sum is σ = 151147577629620. Its totient is φ = 46506946962912.

The previous prime is 87200525555501. The next prime is 87200525555573. The reversal of 87200525555505 is 50555552500278.

87200525555505 is a `hidden beast` number, since 87 + 2 + 0 + 0 + 5 + 2 + 5 + 5 + 5 + 550 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12016643049009 + 75183882506496 = 3466503^2 + 8670864^2 .

It is not a de Polignac number, because 87200525555505 - 2² = 87200525555501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87200525555501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968894728350 + ... + 968894728439.

It is an arithmetic number, because the mean of its divisors is an integer number (12595631469135).

Almost surely, 2^{87200525555505} is an apocalyptic number.

It is an amenable number.

87200525555505 is a deficient number, since it is larger than the sum of its proper divisors (63947052074115).

87200525555505 is a wasteful number, since it uses less digits than its factorization.

87200525555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937789456800 (or 1937789456797 counting only the distinct ones).

The product of its (nonzero) digits is 17500000, while the sum is 54.

The spelling of 87200525555505 in words is "eighty-seven trillion, two hundred billion, five hundred twenty-five million, five hundred fifty-five thousand, five hundred five".