55152249 has 8 divisors (see below), whose sum is σ = 74187552. Its totient is φ = 36442560.

The previous prime is 55152247. The next prime is 55152271. The reversal of 55152249 is 94225155.

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

It is not a de Polignac number, because 55152249 - 2¹ = 55152247 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55152241) 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, 81007 + ... + 81684.

It is an arithmetic number, because the mean of its divisors is an integer number (9273444).

Almost surely, 2^55152249 is an apocalyptic number.

It is an amenable number.

55152249 is a deficient number, since it is larger than the sum of its proper divisors (19035303).

55152249 is a wasteful number, since it uses less digits than its factorization.

55152249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162807.

The product of its digits is 18000, while the sum is 33.

The square root of 55152249 is about 7426.4560188558. The cubic root of 55152249 is about 380.6458292747.

The spelling of 55152249 in words is "fifty-five million, one hundred fifty-two thousand, two hundred forty-nine".