514500661 has 4 divisors (see below), whose sum is σ = 514695532. Its totient is φ = 514305792.

The previous prime is 514500653. The next prime is 514500667. The reversal of 514500661 is 166005415.

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 7980625 + 506520036 = 2825^2 + 22506^2 .

It is a cyclic number.

It is not a de Polignac number, because 514500661 - 2³ = 514500653 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 (514500667) 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, 93420 + ... + 98773.

It is an arithmetic number, because the mean of its divisors is an integer number (128673883).

Almost surely, 2^514500661 is an apocalyptic number.

It is an amenable number.

514500661 is a deficient number, since it is larger than the sum of its proper divisors (194871).

514500661 is a wasteful number, since it uses less digits than its factorization.

514500661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194870.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 514500661 is about 22682.6070150677. The cubic root of 514500661 is about 801.3003129419.

The spelling of 514500661 in words is "five hundred fourteen million, five hundred thousand, six hundred sixty-one".