53220131 has 8 divisors (see below), whose sum is σ = 54033840. Its totient is φ = 52411392.

The previous prime is 53220127. The next prime is 53220143. The reversal of 53220131 is 13102235.

53220131 = 9² + 10² + ... + 542².

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

It is a cyclic number.

It is not a de Polignac number, because 53220131 - 2² = 53220127 is a prime.

It is a super-2 number, since 2×53220131² = 5664764687314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53220151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24131 + ... + 26243.

It is an arithmetic number, because the mean of its divisors is an integer number (6754230).

Almost surely, 2^53220131 is an apocalyptic number.

53220131 is a deficient number, since it is larger than the sum of its proper divisors (813709).

53220131 is a wasteful number, since it uses less digits than its factorization.

53220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 53220131 is about 7295.2128824319. The cubic root of 53220131 is about 376.1479042200.

Adding to 53220131 its reverse (13102235), we get a palindrome (66322366).

The spelling of 53220131 in words is "fifty-three million, two hundred twenty thousand, one hundred thirty-one".