65170055 has 4 divisors (see below), whose sum is σ = 78204072. Its totient is φ = 52136040.

The previous prime is 65170037. The next prime is 65170073. The reversal of 65170055 is 55007156.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (65170037) and next prime (65170073).

It is not a de Polignac number, because 65170055 - 2¹⁶ = 65104519 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 6517001 + ... + 6517010.

It is an arithmetic number, because the mean of its divisors is an integer number (19551018).

Almost surely, 2^65170055 is an apocalyptic number.

65170055 is a deficient number, since it is larger than the sum of its proper divisors (13034017).

65170055 is a wasteful number, since it uses less digits than its factorization.

65170055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13034016.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 65170055 is about 8072.7972227723. The cubic root of 65170055 is about 402.4229087339.

The spelling of 65170055 in words is "sixty-five million, one hundred seventy thousand, fifty-five".