55272169 has 8 divisors (see below), whose sum is σ = 56580992. Its totient is φ = 53978400.

The previous prime is 55272131. The next prime is 55272179. The reversal of 55272169 is 96127255.

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 55272169 - 2¹¹ = 55270121 is a prime.

It is a super-2 number, since 2×55272169² = 6110025331929122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55272109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3844 + ... + 11194.

It is an arithmetic number, because the mean of its divisors is an integer number (7072624).

Almost surely, 2^55272169 is an apocalyptic number.

It is an amenable number.

55272169 is a deficient number, since it is larger than the sum of its proper divisors (1308823).

55272169 is a wasteful number, since it uses less digits than its factorization.

55272169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527.

The product of its digits is 37800, while the sum is 37.

The square root of 55272169 is about 7434.5254724158. The cubic root of 55272169 is about 380.9215146393.

The spelling of 55272169 in words is "fifty-five million, two hundred seventy-two thousand, one hundred sixty-nine".