53698813 has 8 divisors (see below), whose sum is σ = 64038528. Its totient is φ = 44026224.

The previous prime is 53698793. The next prime is 53698817. The reversal of 53698813 is 31889635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53698813 - 2⁵ = 53698781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53698813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53698817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166606 + ... + 166927.

It is an arithmetic number, because the mean of its divisors is an integer number (8004816).

Almost surely, 2^53698813 is an apocalyptic number.

It is an amenable number.

53698813 is a deficient number, since it is larger than the sum of its proper divisors (10339715).

53698813 is a wasteful number, since it uses less digits than its factorization.

53698813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333563.

The product of its digits is 155520, while the sum is 43.

The square root of 53698813 is about 7327.9473933701. The cubic root of 53698813 is about 377.2722787803.

The spelling of 53698813 in words is "fifty-three million, six hundred ninety-eight thousand, eight hundred thirteen".