55500004 has 24 divisors (see below), whose sum is σ = 111299328. Its totient is φ = 23721600.

The previous prime is 55499993. The next prime is 55500031. The reversal of 55500004 is 40000555.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8757 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (4637472).

Almost surely, 2^55500004 is an apocalyptic number.

It is an amenable number.

55500004 is an abundant number, since it is smaller than the sum of its proper divisors (55799324).

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

55500004 is a wasteful number, since it uses less digits than its factorization.

55500004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355 (or 5353 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 55500004 is about 7449.8324813381. The cubic root of 55500004 is about 381.4441904565. Note that the first 3 decimals are identical.

Adding to 55500004 its reverse (40000555), we get a palindrome (95500559).

The spelling of 55500004 in words is "fifty-five million, five hundred thousand, four".