55325155 has 4 divisors (see below), whose sum is σ = 66390192. Its totient is φ = 44260120.

The previous prime is 55325147. The next prime is 55325177. The reversal of 55325155 is 55152355.

It is a happy number.

55325155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55152355 = 5 ⋅11030471.

It is not a de Polignac number, because 55325155 - 2³ = 55325147 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 5532511 + ... + 5532520.

It is an arithmetic number, because the mean of its divisors is an integer number (16597548).

Almost surely, 2^55325155 is an apocalyptic number.

55325155 is a deficient number, since it is larger than the sum of its proper divisors (11065037).

55325155 is a wasteful number, since it uses less digits than its factorization.

55325155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065036.

The product of its digits is 18750, while the sum is 31.

The square root of 55325155 is about 7438.0881280071. The cubic root of 55325155 is about 381.0431977070.

The spelling of 55325155 in words is "fifty-five million, three hundred twenty-five thousand, one hundred fifty-five".