6231556 has 6 divisors (see below), whose sum is σ = 10905230. Its totient is φ = 3115776.

The previous prime is 6231553. The next prime is 6231559. The reversal of 6231556 is 6551326.

6231556 is digitally balanced in base 5, 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 (6231553) and next prime (6231559).

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 614656 = 2370^2 + 784^2 .

It is a super-2 number, since 2×6231556² = 77664580362272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6231553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778941 + ... + 778948.

Almost surely, 2^6231556 is an apocalyptic number.

It is an amenable number.

6231556 is a deficient number, since it is larger than the sum of its proper divisors (4673674).

6231556 is a wasteful number, since it uses less digits than its factorization.

6231556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557893 (or 1557891 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 6231556 is about 2496.3084745279. The cubic root of 6231556 is about 184.0202009957.

The spelling of 6231556 in words is "six million, two hundred thirty-one thousand, five hundred fifty-six".