525364221 has 8 divisors (see below), whose sum is σ = 719417824. Its totient is φ = 340776720.

The previous prime is 525364121. The next prime is 525364247. The reversal of 525364221 is 122463525.

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

It is not a de Polignac number, because 525364221 - 2⁷ = 525364093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525364291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366395 + ... + 2366616.

It is an arithmetic number, because the mean of its divisors is an integer number (89927228).

Almost surely, 2^525364221 is an apocalyptic number.

It is an amenable number.

525364221 is a deficient number, since it is larger than the sum of its proper divisors (194053603).

525364221 is a wasteful number, since it uses less digits than its factorization.

525364221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733051.

The product of its digits is 14400, while the sum is 30.

The square root of 525364221 is about 22920.8250505954. The cubic root of 525364221 is about 806.9008337277.

The spelling of 525364221 in words is "five hundred twenty-five million, three hundred sixty-four thousand, two hundred twenty-one".