65415455 has 16 divisors (see below), whose sum is σ = 89845824. Its totient is φ = 44789760.

The previous prime is 65415443. The next prime is 65415481. The reversal of 65415455 is 55451456.

It is not a de Polignac number, because 65415455 - 2¹⁴ = 65399071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39545 + ... + 41165.

It is an arithmetic number, because the mean of its divisors is an integer number (5615364).

Almost surely, 2^65415455 is an apocalyptic number.

65415455 is a deficient number, since it is larger than the sum of its proper divisors (24430369).

65415455 is a wasteful number, since it uses less digits than its factorization.

65415455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its digits is 60000, while the sum is 35.

The square root of 65415455 is about 8087.9821340060. The cubic root of 65415455 is about 402.9273883138.

The spelling of 65415455 in words is "sixty-five million, four hundred fifteen thousand, four hundred fifty-five".