55006040 has 32 divisors (see below), whose sum is σ = 128034000. Its totient is φ = 21243264.

The previous prime is 55006037. The next prime is 55006109. The reversal of 55006040 is 4060055.

55006040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22550 + ... + 24869.

Almost surely, 2^55006040 is an apocalyptic number.

It is an amenable number.

55006040 is an abundant number, since it is smaller than the sum of its proper divisors (73027960).

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

55006040 is a wasteful number, since it uses less digits than its factorization.

55006040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47459 (or 47455 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55006040 is about 7416.6056926333. The cubic root of 55006040 is about 380.3091666774.

Adding to 55006040 its reverse (4060055), we get a palindrome (59066095).

The spelling of 55006040 in words is "fifty-five million, six thousand, forty".