616422555 has 80 divisors (see below), whose sum is σ = 1275715584. Its totient is φ = 278925120.

The previous prime is 616422523. The next prime is 616422557. The reversal of 616422555 is 555224616.

616422555 is a `hidden beast` number, since 6 + 1 + 642 + 2 + 5 + 5 + 5 = 666.

It is not a de Polignac number, because 616422555 - 2⁵ = 616422523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616422557) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 290950 + ... + 293060.

Almost surely, 2^616422555 is an apocalyptic number.

616422555 is an abundant number, since it is smaller than the sum of its proper divisors (659293029).

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

616422555 is a wasteful number, since it uses less digits than its factorization.

616422555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2229 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 616422555 is about 24827.8584457057. The cubic root of 616422555 is about 851.0586831593.

The spelling of 616422555 in words is "six hundred sixteen million, four hundred twenty-two thousand, five hundred fifty-five".