55555000050 has 96 divisors (see below), whose sum is σ = 152112764160. Its totient is φ = 13305582400.

The previous prime is 55555000031. The next prime is 55555000051. The reversal of 55555000050 is 5000055555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55554999981 and 55555000017.

It is not an unprimeable number, because it can be changed into a prime (55555000051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65880 + ... + 339779.

It is an arithmetic number, because the mean of its divisors is an integer number (1584507960).

Almost surely, 2^55555000050 is an apocalyptic number.

55555000050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55555000050 is an abundant number, since it is smaller than the sum of its proper divisors (96557764110).

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

55555000050 is a wasteful number, since it uses less digits than its factorization.

55555000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405768 (or 405763 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 55555000050 in words is "fifty-five billion, five hundred fifty-five million, fifty", and thus it is an aban number.