616454056 has 16 divisors (see below), whose sum is σ = 1159168500. Its totient is φ = 307342464.

The previous prime is 616454039. The next prime is 616454081. The reversal of 616454056 is 650454616.

It can be written as a sum of positive squares in 2 ways, for example, as 521391556 + 95062500 = 22834^2 + 9750^2 .

It is a super-2 number, since 2×616454056² = 760031206317702272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107605 + ... + 113188.

Almost surely, 2^616454056 is an apocalyptic number.

It is an amenable number.

616454056 is a deficient number, since it is larger than the sum of its proper divisors (542714444).

616454056 is a wasteful number, since it uses less digits than its factorization.

616454056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221148 (or 221144 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 616454056 is about 24828.4928257838. The cubic root of 616454056 is about 851.0731801104.

The spelling of 616454056 in words is "six hundred sixteen million, four hundred fifty-four thousand, fifty-six".