53263997 has 2 divisors, whose sum is σ = 53263998. Its totient is φ = 53263996.

The previous prime is 53263963. The next prime is 53264023. The reversal of 53263997 is 79936235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39677401 + 13586596 = 6299^2 + 3686^2 .

It is a cyclic number.

It is not a de Polignac number, because 53263997 - 2¹⁰ = 53262973 is a prime.

It is a super-3 number, since 3×53263997³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53263937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26631998 + 26631999.

It is an arithmetic number, because the mean of its divisors is an integer number (26631999).

Almost surely, 2^53263997 is an apocalyptic number.

It is an amenable number.

53263997 is a deficient number, since it is larger than the sum of its proper divisors (1).

53263997 is an equidigital number, since it uses as much as digits as its factorization.

53263997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 44.

The square root of 53263997 is about 7298.2187552854. The cubic root of 53263997 is about 376.2512208435.

The spelling of 53263997 in words is "fifty-three million, two hundred sixty-three thousand, nine hundred ninety-seven".