55309004604 has 288 divisors, whose sum is σ = 173287296000. Its totient is φ = 15200172288.

The previous prime is 55309004587. The next prime is 55309004623. The reversal of 55309004604 is 40640090355.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14672832 + ... + 14676600.

It is an arithmetic number, because the mean of its divisors is an integer number (601692000).

Almost surely, 2^55309004604 is an apocalyptic number.

55309004604 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55309004604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86643648000).

55309004604 is an abundant number, since it is smaller than the sum of its proper divisors (117978291396).

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

55309004604 is a wasteful number, since it uses less digits than its factorization.

55309004604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902 (or 3887 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 55309004604 its reverse (40640090355), we get a palindrome (95949094959).

The spelling of 55309004604 in words is "fifty-five billion, three hundred nine million, four thousand, six hundred four".