516407457 has 8 divisors (see below), whose sum is σ = 688652800. Its totient is φ = 344216880.

The previous prime is 516407443. The next prime is 516407497. The reversal of 516407457 is 754704615.

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

It is not a de Polignac number, because 516407457 - 2²⁰ = 515358881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516407407) 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, 20544 + ... + 38142.

It is an arithmetic number, because the mean of its divisors is an integer number (86081600).

Almost surely, 2^516407457 is an apocalyptic number.

It is an amenable number.

516407457 is a deficient number, since it is larger than the sum of its proper divisors (172245343).

516407457 is a wasteful number, since it uses less digits than its factorization.

516407457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27383.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 516407457 is about 22724.6002605106. The cubic root of 516407457 is about 802.2889949023.

The spelling of 516407457 in words is "five hundred sixteen million, four hundred seven thousand, four hundred fifty-seven".