55000506 has 32 divisors (see below), whose sum is σ = 120719808. Its totient is φ = 16567040.

The previous prime is 55000499. The next prime is 55000507. The reversal of 55000506 is 60500055.

It is not an unprimeable number, because it can be changed into a prime (55000507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9010 + ... + 13826.

It is an arithmetic number, because the mean of its divisors is an integer number (3772494).

Almost surely, 2^55000506 is an apocalyptic number.

55000506 is an abundant number, since it is smaller than the sum of its proper divisors (65719302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55000506 is a wasteful number, since it uses less digits than its factorization.

55000506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55000506 is about 7416.2326015302. The cubic root of 55000506 is about 380.2964123113.

The spelling of 55000506 in words is "fifty-five million, five hundred six", and thus it is an aban number.