220393550 has 24 divisors (see below), whose sum is σ = 441466536. Its totient is φ = 81375840.

The previous prime is 220393543. The next prime is 220393561. The reversal of 220393550 is 55393022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168884 + ... + 170183.

It is an arithmetic number, because the mean of its divisors is an integer number (18394439).

Almost surely, 2^220393550 is an apocalyptic number.

220393550 is an abundant number, since it is smaller than the sum of its proper divisors (221072986).

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

220393550 is a wasteful number, since it uses less digits than its factorization.

220393550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339092 (or 339087 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 220393550 is about 14845.6576142655. The cubic root of 220393550 is about 604.0408269553.

The spelling of 220393550 in words is "two hundred twenty million, three hundred ninety-three thousand, five hundred fifty".