616234225 has 12 divisors (see below), whose sum is σ = 771144220. Its totient is φ = 488462400.

The previous prime is 616234219. The next prime is 616234231. The reversal of 616234225 is 522432616.

It is an interprime number because it is at equal distance from previous prime (616234219) and next prime (616234231).

It can be written as a sum of positive squares in 6 ways, for example, as 3249 + 616230976 = 57^2 + 24824^2 .

It is not a de Polignac number, because 616234225 - 2⁷ = 616234097 is a prime.

It is a super-2 number, since 2×616234225² = 759489240122701250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110346 + ... + 115795.

Almost surely, 2^616234225 is an apocalyptic number.

It is an amenable number.

616234225 is a deficient number, since it is larger than the sum of its proper divisors (154909995).

616234225 is a wasteful number, since it uses less digits than its factorization.

616234225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226260 (or 226255 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 616234225 is about 24824.0654406163. The cubic root of 616234225 is about 850.9720022474.

The spelling of 616234225 in words is "six hundred sixteen million, two hundred thirty-four thousand, two hundred twenty-five".