65224055 has 16 divisors (see below), whose sum is σ = 88727520. Its totient is φ = 45629568.

The previous prime is 65224051. The next prime is 65224063. The reversal of 65224055 is 55042256.

It is a cyclic number.

It is not a de Polignac number, because 65224055 - 2² = 65224051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65224051) 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, 25172 + ... + 27641.

It is an arithmetic number, because the mean of its divisors is an integer number (5545470).

Almost surely, 2^65224055 is an apocalyptic number.

65224055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65224055 is a deficient number, since it is larger than the sum of its proper divisors (23503465).

65224055 is a wasteful number, since it uses less digits than its factorization.

65224055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52850.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 65224055 is about 8076.1410958452. The cubic root of 65224055 is about 402.5340274461.

The spelling of 65224055 in words is "sixty-five million, two hundred twenty-four thousand, fifty-five".