5631401 has 2 divisors, whose sum is σ = 5631402. Its totient is φ = 5631400.

The previous prime is 5631383. The next prime is 5631413. The reversal of 5631401 is 1041365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5382400 + 249001 = 2320^2 + 499^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631401 - 2¹⁴ = 5615017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5631421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815700 + 2815701.

It is an arithmetic number, because the mean of its divisors is an integer number (2815701).

Almost surely, 2^5631401 is an apocalyptic number.

It is an amenable number.

5631401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631401 is an equidigital number, since it uses as much as digits as its factorization.

5631401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 5631401 is about 2373.0573107281. The cubic root of 5631401 is about 177.9120994269.

Adding to 5631401 its reverse (1041365), we get a palindrome (6672766).

The spelling of 5631401 in words is "five million, six hundred thirty-one thousand, four hundred one".