55801071 has 12 divisors (see below), whose sum is σ = 80783872. Its totient is φ = 37116576.

The previous prime is 55801063. The next prime is 55801087. The reversal of 55801071 is 17010855.

55801071 is a `hidden beast` number, since 5 + 580 + 10 + 71 = 666.

It is not a de Polignac number, because 55801071 - 2³ = 55801063 is a prime.

It is a super-2 number, since 2×55801071² = 6227519049494082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55801001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2671 + ... + 10896.

Almost surely, 2^55801071 is an apocalyptic number.

55801071 is a deficient number, since it is larger than the sum of its proper divisors (24982801).

55801071 is a wasteful number, since it uses less digits than its factorization.

55801071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14030 (or 14027 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 55801071 is about 7470.0114457744. The cubic root of 55801071 is about 382.1326782527.

The spelling of 55801071 in words is "fifty-five million, eight hundred one thousand, seventy-one".