516106551 has 4 divisors (see below), whose sum is σ = 688142072. Its totient is φ = 344071032.

The previous prime is 516106541. The next prime is 516106559. The reversal of 516106551 is 155601615.

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

It is not a de Polignac number, because 516106551 - 2¹⁷ = 515975479 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 (516106559) 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, 86017756 + ... + 86017761.

It is an arithmetic number, because the mean of its divisors is an integer number (172035518).

Almost surely, 2^516106551 is an apocalyptic number.

516106551 is a deficient number, since it is larger than the sum of its proper divisors (172035521).

516106551 is a wasteful number, since it uses less digits than its factorization.

516106551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172035520.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 516106551 is about 22717.9785852527. The cubic root of 516106551 is about 802.1331357553.

The spelling of 516106551 in words is "five hundred sixteen million, one hundred six thousand, five hundred fifty-one".