223957343550 has 48 divisors (see below), whose sum is σ = 559787599872. Its totient is φ = 59251701600.

The previous prime is 223957343473. The next prime is 223957343639. The reversal of 223957343550 is 55343759322.

It is a self number, because there is not a number n which added to its sum of digits gives 223957343550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5859096 + ... + 5897195.

It is an arithmetic number, because the mean of its divisors is an integer number (11662241664).

Almost surely, 2^223957343550 is an apocalyptic number.

223957343550 is an abundant number, since it is smaller than the sum of its proper divisors (335830256322).

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

223957343550 is a wasteful number, since it uses less digits than its factorization.

223957343550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756433 (or 11756428 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 48.

The spelling of 223957343550 in words is "two hundred twenty-three billion, nine hundred fifty-seven million, three hundred forty-three thousand, five hundred fifty".