221053952 has 44 divisors (see below), whose sum is σ = 505035840. Its totient is φ = 94734336.

The previous prime is 221053951. The next prime is 221053957. The reversal of 221053952 is 259350122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221053951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8252 + ... + 22587.

Almost surely, 2^221053952 is an apocalyptic number.

It is an amenable number.

221053952 is an abundant number, since it is smaller than the sum of its proper divisors (283981888).

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

221053952 is an equidigital number, since it uses as much as digits as its factorization.

221053952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30866 (or 30848 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 221053952 is about 14867.8832387129. The cubic root of 221053952 is about 604.6435548062.

The spelling of 221053952 in words is "two hundred twenty-one million, fifty-three thousand, nine hundred fifty-two".