516442657 has 8 divisors (see below), whose sum is σ = 524151936. Its totient is φ = 508788672.

The previous prime is 516442649. The next prime is 516442697. The reversal of 516442657 is 756244615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 516442657 - 2³ = 516442649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516442607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5188 + ... + 32554.

It is an arithmetic number, because the mean of its divisors is an integer number (65518992).

Almost surely, 2^516442657 is an apocalyptic number.

It is an amenable number.

516442657 is a deficient number, since it is larger than the sum of its proper divisors (7709279).

516442657 is a wasteful number, since it uses less digits than its factorization.

516442657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27647.

The product of its digits is 201600, while the sum is 40.

The square root of 516442657 is about 22725.3747383844. The cubic root of 516442657 is about 802.3072233578.

The spelling of 516442657 in words is "five hundred sixteen million, four hundred forty-two thousand, six hundred fifty-seven".