5615641 has 2 divisors, whose sum is σ = 5615642. Its totient is φ = 5615640.

The previous prime is 5615639. The next prime is 5615651. The reversal of 5615641 is 1465165.

5615641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4928400 + 687241 = 2220^2 + 829^2 .

It is a cyclic number.

It is not a de Polignac number, because 5615641 - 2¹ = 5615639 is a prime.

Together with 5615639, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5615651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807820 + 2807821.

It is an arithmetic number, because the mean of its divisors is an integer number (2807821).

Almost surely, 2^5615641 is an apocalyptic number.

It is an amenable number.

5615641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5615641 is an equidigital number, since it uses as much as digits as its factorization.

5615641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 5615641 is about 2369.7343733001. The cubic root of 5615641 is about 177.7459765021.

The spelling of 5615641 in words is "five million, six hundred fifteen thousand, six hundred forty-one".