1086521225 has 12 divisors (see below), whose sum is σ = 1347783900. Its totient is φ = 868896000.

The previous prime is 1086521209. The next prime is 1086521257. The reversal of 1086521225 is 5221256801.

It can be written as a sum of positive squares in 6 ways, for example, as 323712064 + 762809161 = 17992^2 + 27619^2 .

It is not a de Polignac number, because 1086521225 - 2⁴ = 1086521209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1086521191 and 1086521200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79925 + ... + 92525.

It is an arithmetic number, because the mean of its divisors is an integer number (112315325).

Almost surely, 2^1086521225 is an apocalyptic number.

It is an amenable number.

1086521225 is a deficient number, since it is larger than the sum of its proper divisors (261262675).

1086521225 is a wasteful number, since it uses less digits than its factorization.

1086521225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16060 (or 16055 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1086521225 is about 32962.4214068081. The cubic root of 1086521225 is about 1028.0464511024.

The spelling of 1086521225 in words is "one billion, eighty-six million, five hundred twenty-one thousand, two hundred twenty-five".