516032401 has 4 divisors (see below), whose sum is σ = 523101412. Its totient is φ = 508963392.

The previous prime is 516032353. The next prime is 516032443. The reversal of 516032401 is 104230615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 328479376 + 187553025 = 18124^2 + 13695^2 .

It is a cyclic number.

It is not a de Polignac number, because 516032401 - 2¹⁵ = 515999633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516032471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3534396 + ... + 3534541.

It is an arithmetic number, because the mean of its divisors is an integer number (130775353).

Almost surely, 2^516032401 is an apocalyptic number.

It is an amenable number.

516032401 is a deficient number, since it is larger than the sum of its proper divisors (7069011).

516032401 is an equidigital number, since it uses as much as digits as its factorization.

516032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7069010.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 516032401 is about 22716.3465592511. The cubic root of 516032401 is about 802.0947192561.

The spelling of 516032401 in words is "five hundred sixteen million, thirty-two thousand, four hundred one".