516125561 has 8 divisors (see below), whose sum is σ = 590029440. Its totient is φ = 442264608.

The previous prime is 516125539. The next prime is 516125591. The reversal of 516125561 is 165521615.

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 516125561 - 2¹⁸ = 515863417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516125591) 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, 21500 + ... + 38658.

It is an arithmetic number, because the mean of its divisors is an integer number (73753680).

Almost surely, 2^516125561 is an apocalyptic number.

It is an amenable number.

516125561 is a deficient number, since it is larger than the sum of its proper divisors (73903879).

516125561 is a wasteful number, since it uses less digits than its factorization.

516125561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21463.

The product of its digits is 9000, while the sum is 32.

The square root of 516125561 is about 22718.3969724979. The cubic root of 516125561 is about 802.1429840858.

The spelling of 516125561 in words is "five hundred sixteen million, one hundred twenty-five thousand, five hundred sixty-one".