516357494 has 4 divisors (see below), whose sum is σ = 774536244. Its totient is φ = 258178746.

The previous prime is 516357467. The next prime is 516357529. The reversal of 516357494 is 494753615.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129089372 + ... + 129089375.

It is an arithmetic number, because the mean of its divisors is an integer number (193634061).

Almost surely, 2^516357494 is an apocalyptic number.

516357494 is a deficient number, since it is larger than the sum of its proper divisors (258178750).

516357494 is a wasteful number, since it uses less digits than its factorization.

516357494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258178749.

The product of its digits is 453600, while the sum is 44.

The square root of 516357494 is about 22723.5009186525. The cubic root of 516357494 is about 802.2631199481.

The spelling of 516357494 in words is "five hundred sixteen million, three hundred fifty-seven thousand, four hundred ninety-four".