53016401 has 4 divisors (see below), whose sum is σ = 53502900. Its totient is φ = 52529904.

The previous prime is 53016389. The next prime is 53016413. The reversal of 53016401 is 10461035.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53016389) and next prime (53016413).

It can be written as a sum of positive squares in 2 ways, for example, as 45914176 + 7102225 = 6776^2 + 2665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53016401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53016461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243086 + ... + 243303.

It is an arithmetic number, because the mean of its divisors is an integer number (13375725).

Almost surely, 2^53016401 is an apocalyptic number.

It is an amenable number.

53016401 is a deficient number, since it is larger than the sum of its proper divisors (486499).

53016401 is a wasteful number, since it uses less digits than its factorization.

53016401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486498.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 53016401 is about 7281.2362274548. The cubic root of 53016401 is about 375.6673178680.

Adding to 53016401 its reverse (10461035), we get a palindrome (63477436).

The spelling of 53016401 in words is "fifty-three million, sixteen thousand, four hundred one".