52221445 has 8 divisors (see below), whose sum is σ = 62964000. Its totient is φ = 41578320.

The previous prime is 52221409. The next prime is 52221461. The reversal of 52221445 is 54412225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52221445 - 2⁷ = 52221317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23695 + ... + 25804.

It is an arithmetic number, because the mean of its divisors is an integer number (7870500).

Almost surely, 2^52221445 is an apocalyptic number.

It is an amenable number.

52221445 is a deficient number, since it is larger than the sum of its proper divisors (10742555).

52221445 is a wasteful number, since it uses less digits than its factorization.

52221445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49715.

The product of its digits is 3200, while the sum is 25.

The square root of 52221445 is about 7226.4406868112. The cubic root of 52221445 is about 373.7802024787.

The spelling of 52221445 in words is "fifty-two million, two hundred twenty-one thousand, four hundred forty-five".