55581294804 has 24 divisors (see below), whose sum is σ = 148216786368. Its totient is φ = 15880369920.

The previous prime is 55581294803. The next prime is 55581294877. The reversal of 55581294804 is 40849218555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55581294803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330840957 + ... + 330841124.

It is an arithmetic number, because the mean of its divisors is an integer number (6175699432).

Almost surely, 2^55581294804 is an apocalyptic number.

It is an amenable number.

55581294804 is an abundant number, since it is smaller than the sum of its proper divisors (92635491564).

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

55581294804 is a wasteful number, since it uses less digits than its factorization.

55581294804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661682095 (or 661682093 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 55581294804 in words is "fifty-five billion, five hundred eighty-one million, two hundred ninety-four thousand, eight hundred four".