65769625 has 8 divisors (see below), whose sum is σ = 82080648. Its totient is φ = 52615600.

The previous prime is 65769611. The next prime is 65769629. The reversal of 65769625 is 52696756.

It can be written as a sum of positive squares in 4 ways, for example, as 870489 + 64899136 = 933^2 + 8056^2 .

It is not a de Polignac number, because 65769625 - 2⁹ = 65769113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65769629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262954 + ... + 263203.

It is an arithmetic number, because the mean of its divisors is an integer number (10260081).

Almost surely, 2^65769625 is an apocalyptic number.

It is an amenable number.

65769625 is a deficient number, since it is larger than the sum of its proper divisors (16311023).

65769625 is an equidigital number, since it uses as much as digits as its factorization.

65769625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526172 (or 526162 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 65769625 is about 8109.8474091687. The cubic root of 65769625 is about 403.6532515552.

It can be divided in two parts, 657696 and 25, that added together give a square (657721 = 811²).

The spelling of 65769625 in words is "sixty-five million, seven hundred sixty-nine thousand, six hundred twenty-five".