65245555 has 8 divisors (see below), whose sum is σ = 80204544. Its totient is φ = 50923200.

The previous prime is 65245517. The next prime is 65245561. The reversal of 65245555 is 55554256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65245555 - 2²¹ = 63148403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158931 + ... + 159340.

It is an arithmetic number, because the mean of its divisors is an integer number (10025568).

Almost surely, 2^65245555 is an apocalyptic number.

65245555 is a deficient number, since it is larger than the sum of its proper divisors (14958989).

65245555 is a wasteful number, since it uses less digits than its factorization.

65245555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318317.

The product of its digits is 150000, while the sum is 37.

The square root of 65245555 is about 8077.4720674231. The cubic root of 65245555 is about 402.5782520850.

The spelling of 65245555 in words is "sixty-five million, two hundred forty-five thousand, five hundred fifty-five".