55151071 has 4 divisors (see below), whose sum is σ = 55189600. Its totient is φ = 55112544.

The previous prime is 55151039. The next prime is 55151081. The reversal of 55151071 is 17015155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17015155 = 5 ⋅3403031.

It is a cyclic number.

It is not a de Polignac number, because 55151071 - 2⁵ = 55151039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55151021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17031 + ... + 20008.

It is an arithmetic number, because the mean of its divisors is an integer number (13797400).

Almost surely, 2^55151071 is an apocalyptic number.

55151071 is a deficient number, since it is larger than the sum of its proper divisors (38529).

55151071 is a wasteful number, since it uses less digits than its factorization.

55151071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38528.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 55151071 is about 7426.3767073856. The cubic root of 55151071 is about 380.6431191768.

The spelling of 55151071 in words is "fifty-five million, one hundred fifty-one thousand, seventy-one".