172220550050 has 24 divisors (see below), whose sum is σ = 324841923072. Its totient is φ = 67917962000.

The previous prime is 172220550049. The next prime is 172220550067. The reversal of 172220550050 is 50055022271.

It is a junction number, because it is equal to n+sod(n) for n = 172220549995 and 172220550022.

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, 24252866 + ... + 24259965.

It is an arithmetic number, because the mean of its divisors is an integer number (13535080128).

Almost surely, 2^172220550050 is an apocalyptic number.

172220550050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172220550050 is a deficient number, since it is larger than the sum of its proper divisors (152621373022).

172220550050 is a wasteful number, since it uses less digits than its factorization.

172220550050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48512914 (or 48512909 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The spelling of 172220550050 in words is "one hundred seventy-two billion, two hundred twenty million, five hundred fifty thousand, fifty".