87516025 has 9 divisors (see below), whose sum is σ = 108577903. Its totient is φ = 69975400.

The previous prime is 87516001. The next prime is 87516041. The reversal of 87516025 is 52061578.

The square root of 87516025 is 9355.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 31505769 + 56010256 = 5613^2 + 7484^2 .

It is not a de Polignac number, because 87516025 - 2⁹ = 87515513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45840 + ... + 47710.

Almost surely, 2^87516025 is an apocalyptic number.

87516025 is the 9355-th square number.

87516025 is the 4678-th centered octagonal number.

It is an amenable number.

87516025 is a deficient number, since it is larger than the sum of its proper divisors (21061878).

87516025 is an frugal number, since it uses more digits than its factorization.

87516025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The cubic root of 87516025 is about 443.9791014296.

It can be divided in two parts, 875 and 16025, that added together give a square (16900 = 130²).

The spelling of 87516025 in words is "eighty-seven million, five hundred sixteen thousand, twenty-five".