65256155 has 16 divisors (see below), whose sum is σ = 80508384. Its totient is φ = 50749440.

The previous prime is 65256151. The next prime is 65256167. The reversal of 65256155 is 55165256.

It is not a de Polignac number, because 65256155 - 2² = 65256151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65256151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54665 + ... + 55845.

It is an arithmetic number, because the mean of its divisors is an integer number (5031774).

Almost surely, 2^65256155 is an apocalyptic number.

65256155 is a deficient number, since it is larger than the sum of its proper divisors (15252229).

65256155 is a wasteful number, since it uses less digits than its factorization.

65256155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486.

The product of its digits is 45000, while the sum is 35.

The square root of 65256155 is about 8078.1281866531. The cubic root of 65256155 is about 402.6000522847.

The spelling of 65256155 in words is "sixty-five million, two hundred fifty-six thousand, one hundred fifty-five".