87155325 has 24 divisors (see below), whose sum is σ = 160108800. Its totient is φ = 46482480.

The previous prime is 87155323. The next prime is 87155329. The reversal of 87155325 is 52355178.

87155325 is a `hidden beast` number, since 87 + 1 + 553 + 25 = 666.

It is not a de Polignac number, because 87155325 - 2¹ = 87155323 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87155325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87155323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63885 + ... + 65234.

It is an arithmetic number, because the mean of its divisors is an integer number (6671200).

Almost surely, 2^87155325 is an apocalyptic number.

It is an amenable number.

87155325 is a deficient number, since it is larger than the sum of its proper divisors (72953475).

87155325 is a wasteful number, since it uses less digits than its factorization.

87155325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129138 (or 129127 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 87155325 is about 9335.7016340498. The cubic root of 87155325 is about 443.3683036591.

The spelling of 87155325 in words is "eighty-seven million, one hundred fifty-five thousand, three hundred twenty-five".