53136401 has 4 divisors (see below), whose sum is σ = 53151204. Its totient is φ = 53121600.

The previous prime is 53136397. The next prime is 53136437. The reversal of 53136401 is 10463135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24245776 + 28890625 = 4924^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 53136401 - 2² = 53136397 is a prime.

It is a super-2 number, since 2×53136401² = 5646954222465602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53136001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781 + ... + 10461.

It is an arithmetic number, because the mean of its divisors is an integer number (13287801).

Almost surely, 2^53136401 is an apocalyptic number.

It is an amenable number.

53136401 is a deficient number, since it is larger than the sum of its proper divisors (14803).

53136401 is an equidigital number, since it uses as much as digits as its factorization.

53136401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14802.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 53136401 is about 7289.4719287477. The cubic root of 53136401 is about 375.9505390840.

Adding to 53136401 its reverse (10463135), we get a palindrome (63599536).

The spelling of 53136401 in words is "fifty-three million, one hundred thirty-six thousand, four hundred one".