516061493 has 4 divisors (see below), whose sum is σ = 518023968. Its totient is φ = 514099020.

The previous prime is 516061463. The next prime is 516061499. The reversal of 516061493 is 394160615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516061493 - 2¹⁶ = 515995957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516061499) 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, 980843 + ... + 981368.

It is an arithmetic number, because the mean of its divisors is an integer number (129505992).

Almost surely, 2^516061493 is an apocalyptic number.

It is an amenable number.

516061493 is a deficient number, since it is larger than the sum of its proper divisors (1962475).

516061493 is a wasteful number, since it uses less digits than its factorization.

516061493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962474.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 516061493 is about 22716.9868820669. The cubic root of 516061493 is about 802.1097920183.

The spelling of 516061493 in words is "five hundred sixteen million, sixty-one thousand, four hundred ninety-three".