55012165 has 8 divisors (see below), whose sum is σ = 71092728. Its totient is φ = 40624320.

The previous prime is 55012127. The next prime is 55012171. The reversal of 55012165 is 56121055.

It can be written as a sum of positive squares in 4 ways, for example, as 3617604 + 51394561 = 1902^2 + 7169^2 .

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

It is not a de Polignac number, because 55012165 - 2¹¹ = 55010117 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 7 ways as a sum of consecutive naturals, for example, 423106 + ... + 423235.

It is an arithmetic number, because the mean of its divisors is an integer number (8886591).

Almost surely, 2^55012165 is an apocalyptic number.

It is an amenable number.

55012165 is a deficient number, since it is larger than the sum of its proper divisors (16080563).

55012165 is a wasteful number, since it uses less digits than its factorization.

55012165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846359.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 55012165 is about 7417.0186058820. The cubic root of 55012165 is about 380.3232821405.

The spelling of 55012165 in words is "fifty-five million, twelve thousand, one hundred sixty-five".