65280655 has 16 divisors (see below), whose sum is σ = 86083200. Its totient is φ = 47129760.

The previous prime is 65280641. The next prime is 65280659. The reversal of 65280655 is 55608256.

It is not a de Polignac number, because 65280655 - 2¹³ = 65272463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65280659) 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, 3376 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (5380200).

Almost surely, 2^65280655 is an apocalyptic number.

65280655 is a deficient number, since it is larger than the sum of its proper divisors (20802545).

65280655 is a wasteful number, since it uses less digits than its factorization.

65280655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 65280655 is about 8079.6444847530. The cubic root of 65280655 is about 402.6504305064.

The spelling of 65280655 in words is "sixty-five million, two hundred eighty thousand, six hundred fifty-five".