5631662237 has 2 divisors, whose sum is σ = 5631662238. Its totient is φ = 5631662236.

The previous prime is 5631662209. The next prime is 5631662243. The reversal of 5631662237 is 7322661365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4112143876 + 1519518361 = 64126^2 + 38981^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631662237 - 2⁶ = 5631662173 is a prime.

It is a super-3 number, since 3×5631662237³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5631662194 and 5631662203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5631662537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815831118 + 2815831119.

It is an arithmetic number, because the mean of its divisors is an integer number (2815831119).

Almost surely, 2^5631662237 is an apocalyptic number.

It is an amenable number.

5631662237 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631662237 is an equidigital number, since it uses as much as digits as its factorization.

5631662237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 5631662237 is about 75044.4017698855. The cubic root of 5631662237 is about 1779.1485045954.

The spelling of 5631662237 in words is "five billion, six hundred thirty-one million, six hundred sixty-two thousand, two hundred thirty-seven".