500000055 has 32 divisors (see below), whose sum is σ = 826811904. Its totient is φ = 257821056.

The previous prime is 500000041. The next prime is 500000057. The reversal of 500000055 is 550000005.

It is not a de Polignac number, because 500000055 - 2⁹ = 499999543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

500000055 is a modest number, since divided by 55 gives 5 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500000057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87702 + ... + 93228.

It is an arithmetic number, because the mean of its divisors is an integer number (25837872).

Almost surely, 2^500000055 is an apocalyptic number.

500000055 is a deficient number, since it is larger than the sum of its proper divisors (326811849).

500000055 is a wasteful number, since it uses less digits than its factorization.

500000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735.

The product of its (nonzero) digits is 125, while the sum is 15.

The square root of 500000055 is about 22360.6810048353. The cubic root of 500000055 is about 793.7005550865.

The spelling of 500000055 in words is "five hundred million, fifty-five", and thus it is an aban number.