616536225 has 48 divisors (see below), whose sum is σ = 1192235200. Its totient is φ = 311506560.

The previous prime is 616536209. The next prime is 616536241. The reversal of 616536225 is 522635616.

It is a happy number.

616536225 is a `hidden beast` number, since 616 + 5 + 36 + 2 + 2 + 5 = 666.

616536225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (616536209) and next prime (616536241).

It is not a de Polignac number, because 616536225 - 2⁴ = 616536209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616536225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11212 + ... + 36861.

Almost surely, 2^616536225 is an apocalyptic number.

It is an amenable number.

616536225 is a deficient number, since it is larger than the sum of its proper divisors (575698975).

616536225 is a wasteful number, since it uses less digits than its factorization.

616536225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48111 (or 48100 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 616536225 is about 24830.1475025824. The cubic root of 616536225 is about 851.1109924581.

The spelling of 616536225 in words is "six hundred sixteen million, five hundred thirty-six thousand, two hundred twenty-five".