53820101 has 2 divisors, whose sum is σ = 53820102. Its totient is φ = 53820100.

The previous prime is 53820097. The next prime is 53820139. The reversal of 53820101 is 10102835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 22572001 = 5590^2 + 4751^2 .

It is a cyclic number.

It is not a de Polignac number, because 53820101 - 2² = 53820097 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53820191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26910050 + 26910051.

It is an arithmetic number, because the mean of its divisors is an integer number (26910051).

Almost surely, 2^53820101 is an apocalyptic number.

It is an amenable number.

53820101 is a deficient number, since it is larger than the sum of its proper divisors (1).

53820101 is an equidigital number, since it uses as much as digits as its factorization.

53820101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 53820101 is about 7336.2184400412. The cubic root of 53820101 is about 377.5561099586.

Adding to 53820101 its reverse (10102835), we get a palindrome (63922936).

The spelling of 53820101 in words is "fifty-three million, eight hundred twenty thousand, one hundred one".