516401353 has 4 divisors (see below), whose sum is σ = 556124548. Its totient is φ = 476678160.

The previous prime is 516401329. The next prime is 516401363. The reversal of 516401353 is 353104615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353104615 = 5 ⋅70620923.

It can be written as a sum of positive squares in 2 ways, for example, as 101545929 + 414855424 = 10077^2 + 20368^2 .

It is a cyclic number.

It is not a de Polignac number, because 516401353 - 2⁵ = 516401321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516401363) 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, 19861578 + ... + 19861603.

It is an arithmetic number, because the mean of its divisors is an integer number (139031137).

Almost surely, 2^516401353 is an apocalyptic number.

It is an amenable number.

516401353 is a deficient number, since it is larger than the sum of its proper divisors (39723195).

516401353 is a wasteful number, since it uses less digits than its factorization.

516401353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39723194.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 516401353 is about 22724.4659563212. The cubic root of 516401353 is about 802.2858338381.

Adding to 516401353 its reverse (353104615), we get a palindrome (869505968).

The spelling of 516401353 in words is "five hundred sixteen million, four hundred one thousand, three hundred fifty-three".