32520712225 has 9 divisors (see below), whose sum is σ = 40326801267. Its totient is φ = 26015848440.

The previous prime is 32520712187. The next prime is 32520712247. The reversal of 32520712225 is 52221702523.

It is a happy number.

The square root of 32520712225 is 180335.

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., 11707456401 + 20813255824 = 108201^2 + 144268^2 .

It is not a de Polignac number, because 32520712225 - 2²³ = 32512323617 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, 883642 + ... + 919708.

Almost surely, 2^32520712225 is an apocalyptic number.

32520712225 is the 180335-th square number.

32520712225 is the 90168-th centered octagonal number.

It is an amenable number.

32520712225 is a deficient number, since it is larger than the sum of its proper divisors (7806089042).

32520712225 is an frugal number, since it uses more digits than its factorization.

32520712225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72144 (or 36072 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 32520712225 in words is "thirty-two billion, five hundred twenty million, seven hundred twelve thousand, two hundred twenty-five".