87270022225 has 9 divisors (see below), whose sum is σ = 108216659163. Its totient is φ = 69814836120.

The previous prime is 87270022171. The next prime is 87270022237. The reversal of 87270022225 is 52222007278.

The square root of 87270022225 is 295415.

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., 31417208001 + 55852814224 = 177249^2 + 236332^2 .

It is not a de Polignac number, because 87270022225 - 2⁷ = 87270022097 is a prime.

It is a super-3 number, since 3×87270022225³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1447534 + ... + 1506616.

Almost surely, 2^87270022225 is an apocalyptic number.

87270022225 is the 295415-th square number.

87270022225 is the 147708-th centered octagonal number.

It is an amenable number.

87270022225 is a deficient number, since it is larger than the sum of its proper divisors (20946636938).

87270022225 is an frugal number, since it uses more digits than its factorization.

87270022225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118176 (or 59088 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The spelling of 87270022225 in words is "eighty-seven billion, two hundred seventy million, twenty-two thousand, two hundred twenty-five".