53020553 has 2 divisors, whose sum is σ = 53020554. Its totient is φ = 53020552.

The previous prime is 53020549. The next prime is 53020567. The reversal of 53020553 is 35502035.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52461049 + 559504 = 7243^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 53020553 - 2² = 53020549 is a prime.

It is a super-2 number, since 2×53020553² = 5622358080851618, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53020523) 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 as a sum of consecutive naturals, namely, 26510276 + 26510277.

It is an arithmetic number, because the mean of its divisors is an integer number (26510277).

Almost surely, 2^53020553 is an apocalyptic number.

It is an amenable number.

53020553 is a deficient number, since it is larger than the sum of its proper divisors (1).

53020553 is an equidigital number, since it uses as much as digits as its factorization.

53020553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 53020553 is about 7281.5213382919. The cubic root of 53020553 is about 375.6771244559.

Adding to 53020553 its reverse (35502035), we get a palindrome (88522588).

The spelling of 53020553 in words is "fifty-three million, twenty thousand, five hundred fifty-three".