516536434 has 4 divisors (see below), whose sum is σ = 774804654. Its totient is φ = 258268216.

The previous prime is 516536399. The next prime is 516536441. The reversal of 516536434 is 434635615.

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

It can be written as a sum of positive squares in only one way, i.e., 283821409 + 232715025 = 16847^2 + 15255^2 .

It is a junction number, because it is equal to n+sod(n) for n = 516536393 and 516536402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129134107 + ... + 129134110.

Almost surely, 2^516536434 is an apocalyptic number.

516536434 is a deficient number, since it is larger than the sum of its proper divisors (258268220).

516536434 is a wasteful number, since it uses less digits than its factorization.

516536434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258268219.

The product of its digits is 129600, while the sum is 37.

The square root of 516536434 is about 22727.4379110361. The cubic root of 516536434 is about 802.3557820957.

The spelling of 516536434 in words is "five hundred sixteen million, five hundred thirty-six thousand, four hundred thirty-four".