616625601 has 16 divisors (see below), whose sum is σ = 866053440. Its totient is φ = 389171520.

The previous prime is 616625599. The next prime is 616625621. The reversal of 616625601 is 106526616.

It is not a de Polignac number, because 616625601 - 2¹ = 616625599 is a prime.

It is a super-2 number, since 2×616625601² = 760454263617222402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (616625621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103171 + ... + 108983.

It is an arithmetic number, because the mean of its divisors is an integer number (54128340).

Almost surely, 2^616625601 is an apocalyptic number.

It is an amenable number.

616625601 is a deficient number, since it is larger than the sum of its proper divisors (249427839).

616625601 is a wasteful number, since it uses less digits than its factorization.

616625601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7696.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 616625601 is about 24831.9471850276. The cubic root of 616625601 is about 851.1521174926.

The spelling of 616625601 in words is "six hundred sixteen million, six hundred twenty-five thousand, six hundred one".