53220575 has 6 divisors (see below), whose sum is σ = 65993544. Its totient is φ = 42576440.

The previous prime is 53220553. The next prime is 53220581. The reversal of 53220575 is 57502235.

It is not a de Polignac number, because 53220575 - 2¹⁴ = 53204191 is a prime.

It is a super-3 number, since 3×53220575³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1064387 + ... + 1064436.

It is an arithmetic number, because the mean of its divisors is an integer number (10998924).

Almost surely, 2^53220575 is an apocalyptic number.

53220575 is a deficient number, since it is larger than the sum of its proper divisors (12772969).

53220575 is a wasteful number, since it uses less digits than its factorization.

53220575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128833 (or 2128828 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 53220575 is about 7295.2433132830. The cubic root of 53220575 is about 376.1489502478.

The spelling of 53220575 in words is "fifty-three million, two hundred twenty thousand, five hundred seventy-five".