55157165 has 8 divisors (see below), whose sum is σ = 75644160. Its totient is φ = 37822032.

The previous prime is 55157117. The next prime is 55157189. The reversal of 55157165 is 56175155.

55157165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55157165 - 2⁸ = 55156909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1575919 = 55157165 / (5 + 5 + 1 + 5 + 7 + 1 + 6 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787925 + ... + 787994.

It is an arithmetic number, because the mean of its divisors is an integer number (9455520).

Almost surely, 2^55157165 is an apocalyptic number.

It is an amenable number.

55157165 is a deficient number, since it is larger than the sum of its proper divisors (20486995).

55157165 is a wasteful number, since it uses less digits than its factorization.

55157165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575931.

The product of its digits is 26250, while the sum is 35.

The square root of 55157165 is about 7426.7869903478. The cubic root of 55157165 is about 380.6571385706.

The spelling of 55157165 in words is "fifty-five million, one hundred fifty-seven thousand, one hundred sixty-five".