53620243 has 2 divisors, whose sum is σ = 53620244. Its totient is φ = 53620242.

The previous prime is 53620211. The next prime is 53620247. The reversal of 53620243 is 34202635.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53620243 - 2⁵ = 53620211 is a prime.

It is not a weakly prime, because it can be changed into another prime (53620247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26810121 + 26810122.

It is an arithmetic number, because the mean of its divisors is an integer number (26810122).

Almost surely, 2^53620243 is an apocalyptic number.

53620243 is a deficient number, since it is larger than the sum of its proper divisors (1).

53620243 is an equidigital number, since it uses as much as digits as its factorization.

53620243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 53620243 is about 7322.5844481303. The cubic root of 53620243 is about 377.0881856245.

Adding to 53620243 its reverse (34202635), we get a palindrome (87822878).

The spelling of 53620243 in words is "fifty-three million, six hundred twenty thousand, two hundred forty-three".