55405594750 has 256 divisors, whose sum is σ = 122879877120. Its totient is φ = 18506880000.

The previous prime is 55405594711. The next prime is 55405594753. The reversal of 55405594750 is 5749550455.

It is a junction number, because it is equal to n+sod(n) for n = 55405594694 and 55405594703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55405594753) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 180474097 + ... + 180474403.

It is an arithmetic number, because the mean of its divisors is an integer number (479999520).

Almost surely, 2^55405594750 is an apocalyptic number.

55405594750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55405594750 is an abundant number, since it is smaller than the sum of its proper divisors (67474282370).

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

55405594750 is a wasteful number, since it uses less digits than its factorization.

55405594750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 3150000, while the sum is 49.

The spelling of 55405594750 in words is "fifty-five billion, four hundred five million, five hundred ninety-four thousand, seven hundred fifty".