55055050 has 48 divisors (see below), whose sum is σ = 108519840. Its totient is φ = 20744640.

The previous prime is 55055047. The next prime is 55055051. The reversal of 55055050 is 5055055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (55055051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61909 + ... + 62791.

It is an arithmetic number, because the mean of its divisors is an integer number (2260830).

Almost surely, 2^55055050 is an apocalyptic number.

55055050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55055050 is a deficient number, since it is larger than the sum of its proper divisors (53464790).

55055050 is a wasteful number, since it uses less digits than its factorization.

55055050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 55055050 is about 7419.9090290919. The cubic root of 55055050 is about 380.4220840908.

The spelling of 55055050 in words is "fifty-five million, fifty-five thousand, fifty".