65525155 has 8 divisors (see below), whose sum is σ = 79030512. Its totient is φ = 52153248.

The previous prime is 65525153. The next prime is 65525171. The reversal of 65525155 is 55152556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65525155 - 2¹ = 65525153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65525155.

It is not an unprimeable number, because it can be changed into a prime (65525153) 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 7 ways as a sum of consecutive naturals, for example, 32277 + ... + 34246.

It is an arithmetic number, because the mean of its divisors is an integer number (9878814).

Almost surely, 2^65525155 is an apocalyptic number.

65525155 is a deficient number, since it is larger than the sum of its proper divisors (13505357).

65525155 is a wasteful number, since it uses less digits than its factorization.

65525155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66725.

The product of its digits is 37500, while the sum is 34.

The square root of 65525155 is about 8094.7609600284. The cubic root of 65525155 is about 403.1524954104.

The spelling of 65525155 in words is "sixty-five million, five hundred twenty-five thousand, one hundred fifty-five".