65529025 has 9 divisors (see below), whose sum is σ = 81306211. Its totient is φ = 52390840.

The previous prime is 65529019. The next prime is 65529049. The reversal of 65529025 is 52092556.

The square root of 65529025 is 8095.

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., 23590449 + 41938576 = 4857^2 + 6476^2 .

It is not a de Polignac number, because 65529025 - 2⁵ = 65528993 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, 39666 + ... + 41284.

Almost surely, 2^65529025 is an apocalyptic number.

65529025 is the 8095-th square number.

65529025 is the 4048-th centered octagonal number.

It is an amenable number.

65529025 is a deficient number, since it is larger than the sum of its proper divisors (15777186).

65529025 is an frugal number, since it uses more digits than its factorization.

65529025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The cubic root of 65529025 is about 403.1604321560.

The spelling of 65529025 in words is "sixty-five million, five hundred twenty-nine thousand, twenty-five".