616313550 has 24 divisors (see below), whose sum is σ = 1528457976. Its totient is φ = 164350240.

The previous prime is 616313531. The next prime is 616313557. The reversal of 616313550 is 55313616.

616313550 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616313557) 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, 2054229 + ... + 2054528.

It is an arithmetic number, because the mean of its divisors is an integer number (63685749).

Almost surely, 2^616313550 is an apocalyptic number.

616313550 is an abundant number, since it is smaller than the sum of its proper divisors (912144426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616313550 is a wasteful number, since it uses less digits than its factorization.

616313550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108772 (or 4108767 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 616313550 is about 24825.6631331370. The cubic root of 616313550 is about 851.0085145859.

The spelling of 616313550 in words is "six hundred sixteen million, three hundred thirteen thousand, five hundred fifty".