55305583250 has 16 divisors (see below), whose sum is σ = 103532052312. Its totient is φ = 22122233200.

The previous prime is 55305583247. The next prime is 55305583283. The reversal of 55305583250 is 5238550355.

It can be written as a sum of positive squares in 4 ways, for example, as 33673351009 + 21632232241 = 183503^2 + 147079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55305583198 and 55305583207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110610917 + ... + 110611416.

Almost surely, 2^55305583250 is an apocalyptic number.

55305583250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55305583250 is a deficient number, since it is larger than the sum of its proper divisors (48226469062).

55305583250 is a wasteful number, since it uses less digits than its factorization.

55305583250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221222350 (or 221222340 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 55305583250 in words is "fifty-five billion, three hundred five million, five hundred eighty-three thousand, two hundred fifty".