55072151 has 8 divisors (see below), whose sum is σ = 57383424. Its totient is φ = 52794360.

The previous prime is 55072117. The next prime is 55072159. The reversal of 55072151 is 15127055.

It is a happy number.

55072151 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 a de Polignac number, because none of the positive numbers 2^k-55072151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55072151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55072159) by changing a digit.

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, 4985 + ... + 11618.

It is an arithmetic number, because the mean of its divisors is an integer number (7172928).

Almost surely, 2^55072151 is an apocalyptic number.

55072151 is a deficient number, since it is larger than the sum of its proper divisors (2311273).

55072151 is a wasteful number, since it uses less digits than its factorization.

55072151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16741.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 55072151 is about 7421.0613122383. The cubic root of 55072151 is about 380.4614684560.

The spelling of 55072151 in words is "fifty-five million, seventy-two thousand, one hundred fifty-one".