616563499 has 8 divisors (see below), whose sum is σ = 620938080. Its totient is φ = 612197376.

The previous prime is 616563487. The next prime is 616563517. The reversal of 616563499 is 994365616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616563499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616563439) 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, 227947 + ... + 230635.

It is an arithmetic number, because the mean of its divisors is an integer number (77617260).

Almost surely, 2^616563499 is an apocalyptic number.

616563499 is a deficient number, since it is larger than the sum of its proper divisors (4374581).

616563499 is a wasteful number, since it uses less digits than its factorization.

616563499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229.

The product of its digits is 1049760, while the sum is 49.

The square root of 616563499 is about 24830.6967079057. The cubic root of 616563499 is about 851.1235426041.

The spelling of 616563499 in words is "six hundred sixteen million, five hundred sixty-three thousand, four hundred ninety-nine".