53798813 has 2 divisors, whose sum is σ = 53798814. Its totient is φ = 53798812.

The previous prime is 53798749. The next prime is 53798827. The reversal of 53798813 is 31889735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48972004 + 4826809 = 6998^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 53798813 - 2⁶ = 53798749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53798873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26899406 + 26899407.

It is an arithmetic number, because the mean of its divisors is an integer number (26899407).

Almost surely, 2^53798813 is an apocalyptic number.

It is an amenable number.

53798813 is a deficient number, since it is larger than the sum of its proper divisors (1).

53798813 is an equidigital number, since it uses as much as digits as its factorization.

53798813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 53798813 is about 7334.7674128087. The cubic root of 53798813 is about 377.5063238857.

The spelling of 53798813 in words is "fifty-three million, seven hundred ninety-eight thousand, eight hundred thirteen".