55071146 has 8 divisors (see below), whose sum is σ = 88961124. Its totient is φ = 25417440.

The previous prime is 55071103. The next prime is 55071161. The reversal of 55071146 is 64117055.

It can be written as a sum of positive squares in 2 ways, for example, as 54922921 + 148225 = 7411^2 + 385^2 .

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

It is a super-2 number, since 2×55071146² = 6065662243506632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059035 + ... + 1059086.

Almost surely, 2^55071146 is an apocalyptic number.

55071146 is a deficient number, since it is larger than the sum of its proper divisors (33889978).

55071146 is a wasteful number, since it uses less digits than its factorization.

55071146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118136.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 55071146 is about 7420.9935992426. The cubic root of 55071146 is about 380.4591541217.

The spelling of 55071146 in words is "fifty-five million, seventy-one thousand, one hundred forty-six".