616554041 has 4 divisors (see below), whose sum is σ = 617077284. Its totient is φ = 616030800.

The previous prime is 616554017. The next prime is 616554073. The reversal of 616554041 is 140455616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243484816 + 373069225 = 15604^2 + 19315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616554041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616553989 and 616554007.

It is not an unprimeable number, because it can be changed into a prime (616554091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259850 + ... + 262211.

It is an arithmetic number, because the mean of its divisors is an integer number (154269321).

Almost surely, 2^616554041 is an apocalyptic number.

It is an amenable number.

616554041 is a deficient number, since it is larger than the sum of its proper divisors (523243).

616554041 is a wasteful number, since it uses less digits than its factorization.

616554041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523242.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 616554041 is about 24830.5062574246. The cubic root of 616554041 is about 851.1191905421.

It can be divided in two parts, 6165 and 54041, that added together give a palindrome (60206).

The spelling of 616554041 in words is "six hundred sixteen million, five hundred fifty-four thousand, forty-one".