55480005 has 48 divisors (see below), whose sum is σ = 114747840. Its totient is φ = 25359264.

The previous prime is 55480003. The next prime is 55480013. The reversal of 55480005 is 50008455.

It is not a de Polignac number, because 55480005 - 2¹ = 55480003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55480003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2422 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (2390580).

Almost surely, 2^55480005 is an apocalyptic number.

It is an amenable number.

55480005 is an abundant number, since it is smaller than the sum of its proper divisors (59267835).

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

55480005 is a wasteful number, since it uses less digits than its factorization.

55480005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8415 (or 8402 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 55480005 is about 7448.4901154529. The cubic root of 55480005 is about 381.3983681244.

The spelling of 55480005 in words is "fifty-five million, four hundred eighty thousand, five".