65525577 has 16 divisors (see below), whose sum is σ = 95686080. Its totient is φ = 39638592.

The previous prime is 65525533. The next prime is 65525609. The reversal of 65525577 is 77552556.

It is not a de Polignac number, because 65525577 - 2⁶ = 65525513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65525527) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11938 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (5980380).

Almost surely, 2^65525577 is an apocalyptic number.

It is an amenable number.

65525577 is a deficient number, since it is larger than the sum of its proper divisors (30160503).

65525577 is a wasteful number, since it uses less digits than its factorization.

65525577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552.

The product of its digits is 367500, while the sum is 42.

The square root of 65525577 is about 8094.7870262287. The cubic root of 65525577 is about 403.1533608795.

The spelling of 65525577 in words is "sixty-five million, five hundred twenty-five thousand, five hundred seventy-seven".