616854563 has 12 divisors (see below), whose sum is σ = 690993360. Its totient is φ = 549765216.

The previous prime is 616854559. The next prime is 616854583. The reversal of 616854563 is 365458616.

It is not a de Polignac number, because 616854563 - 2² = 616854559 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616854583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58031 + ... + 67832.

It is an arithmetic number, because the mean of its divisors is an integer number (57582780).

Almost surely, 2^616854563 is an apocalyptic number.

616854563 is a deficient number, since it is larger than the sum of its proper divisors (74138797).

616854563 is a wasteful number, since it uses less digits than its factorization.

616854563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125918 (or 125905 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 616854563 is about 24836.5569876342. The cubic root of 616854563 is about 851.2574528182.

The spelling of 616854563 in words is "six hundred sixteen million, eight hundred fifty-four thousand, five hundred sixty-three".