65501155 has 4 divisors (see below), whose sum is σ = 78601392. Its totient is φ = 52400920.

The previous prime is 65501147. The next prime is 65501167. The reversal of 65501155 is 55110556.

65501155 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65501155 - 2³ = 65501147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6550111 + ... + 6550120.

It is an arithmetic number, because the mean of its divisors is an integer number (19650348).

Almost surely, 2^65501155 is an apocalyptic number.

65501155 is a deficient number, since it is larger than the sum of its proper divisors (13100237).

65501155 is a wasteful number, since it uses less digits than its factorization.

65501155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13100236.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 65501155 is about 8093.2783839431. The cubic root of 65501155 is about 403.1032683035.

It can be divided in two parts, 65501 and 155, that added together give a palindrome (65656).

The spelling of 65501155 in words is "sixty-five million, five hundred one thousand, one hundred fifty-five".