55551004 has 12 divisors (see below), whose sum is σ = 97297200. Its totient is φ = 27751808.

The previous prime is 55550993. The next prime is 55551007. The reversal of 55551004 is 40015555.

55551004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55551004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55551007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12 + ... + 10540.

It is an arithmetic number, because the mean of its divisors is an integer number (8108100).

Almost surely, 2^55551004 is an apocalyptic number.

It is an amenable number.

55551004 is a deficient number, since it is larger than the sum of its proper divisors (41746196).

55551004 is a wasteful number, since it uses less digits than its factorization.

55551004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11852 (or 11850 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55551004 is about 7453.2545911166. The cubic root of 55551004 is about 381.5609934389.

Adding to 55551004 its reverse (40015555), we get a palindrome (95566559).

The spelling of 55551004 in words is "fifty-five million, five hundred fifty-one thousand, four".