53220543 has 4 divisors (see below), whose sum is σ = 70960728. Its totient is φ = 35480360.

The previous prime is 53220499. The next prime is 53220553. The reversal of 53220543 is 34502235.

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 53220543 - 2¹⁰ = 53219519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53220553) 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, 8870088 + ... + 8870093.

It is an arithmetic number, because the mean of its divisors is an integer number (17740182).

Almost surely, 2^53220543 is an apocalyptic number.

53220543 is a deficient number, since it is larger than the sum of its proper divisors (17740185).

53220543 is a wasteful number, since it uses less digits than its factorization.

53220543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740184.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53220543 is about 7295.2411200727. The cubic root of 53220543 is about 376.1488748586.

Adding to 53220543 its reverse (34502235), we get a palindrome (87722778).

The spelling of 53220543 in words is "fifty-three million, two hundred twenty thousand, five hundred forty-three".