55221525050 has 24 divisors (see below), whose sum is σ = 105488041116. Its totient is φ = 21491619840.

The previous prime is 55221525049. The next prime is 55221525067. The reversal of 55221525050 is 5052512255.

It can be written as a sum of positive squares in 6 ways, for example, as 36114821521 + 19106703529 = 190039^2 + 138227^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55221524998 and 55221525016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14922887 + ... + 14926586.

Almost surely, 2^55221525050 is an apocalyptic number.

55221525050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55221525050 is a deficient number, since it is larger than the sum of its proper divisors (50266516066).

55221525050 is a wasteful number, since it uses less digits than its factorization.

55221525050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29849522 (or 29849517 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 32.

The spelling of 55221525050 in words is "fifty-five billion, two hundred twenty-one million, five hundred twenty-five thousand, fifty".