53798913 has 18 divisors (see below), whose sum is σ = 90397554. Its totient is φ = 30741984.

The previous prime is 53798893. The next prime is 53798917. The reversal of 53798913 is 31989735.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42928704 + 10870209 = 6552^2 + 3297^2 .

It is not a de Polignac number, because 53798913 - 2¹⁶ = 53733377 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53798917) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60556 + ... + 61437.

Almost surely, 2^53798913 is an apocalyptic number.

It is an amenable number.

53798913 is a deficient number, since it is larger than the sum of its proper divisors (36598641).

53798913 is a wasteful number, since it uses less digits than its factorization.

53798913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122013 (or 122003 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 53798913 is about 7334.7742296542. The cubic root of 53798913 is about 377.5065577856.

The spelling of 53798913 in words is "fifty-three million, seven hundred ninety-eight thousand, nine hundred thirteen".