87587231028025 has 27 divisors (see below), whose sum is σ = 108784673364591. Its totient is φ = 69956094059280.

The previous prime is 87587231028001. The next prime is 87587231028067. The reversal of 87587231028025 is 52082013278578.

It is a happy number.

The square root of 87587231028025 is 9358805.

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., 31531403170089 + 56055827857936 = 5615283^2 + 7487044^2 .

It is not a de Polignac number, because 87587231028025 - 2²⁹ = 87586694157113 is a prime.

It is a super-3 number, since 3×87587231028025³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 40196066386 + ... + 40196068564.

Almost surely, 2^{87587231028025} is an apocalyptic number.

87587231028025 is the 9358805-th square number.

87587231028025 is the 4679403-rd centered octagonal number.

It is an amenable number.

87587231028025 is a deficient number, since it is larger than the sum of its proper divisors (21197442336566).

87587231028025 is an frugal number, since it uses more digits than its factorization.

87587231028025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 3043 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 58.

The spelling of 87587231028025 in words is "eighty-seven trillion, five hundred eighty-seven billion, two hundred thirty-one million, twenty-eight thousand, twenty-five".