221725003 has 4 divisors (see below), whose sum is σ = 233394760. Its totient is φ = 210055248.

The previous prime is 221724961. The next prime is 221725013. The reversal of 221725003 is 300527122.

221725003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221725003 - 2²⁵ = 188170571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221725013) 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, 5834850 + ... + 5834887.

It is an arithmetic number, because the mean of its divisors is an integer number (58348690).

Almost surely, 2^221725003 is an apocalyptic number.

221725003 is a deficient number, since it is larger than the sum of its proper divisors (11669757).

221725003 is a wasteful number, since it uses less digits than its factorization.

221725003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11669756.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 221725003 is about 14890.4332710637. The cubic root of 221725003 is about 605.2547732831.

The spelling of 221725003 in words is "two hundred twenty-one million, seven hundred twenty-five thousand, three".