5378561 has 2 divisors, whose sum is σ = 5378562. Its totient is φ = 5378560.

The previous prime is 5378551. The next prime is 5378563. The reversal of 5378561 is 1658735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5313025 + 65536 = 2305^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 5378561 - 2⁶ = 5378497 is a prime.

Together with 5378563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5378563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2689280 + 2689281.

It is an arithmetic number, because the mean of its divisors is an integer number (2689281).

Almost surely, 2^5378561 is an apocalyptic number.

It is an amenable number.

5378561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5378561 is an equidigital number, since it uses as much as digits as its factorization.

5378561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 5378561 is about 2319.1724817270. The cubic root of 5378561 is about 175.2085785121.

The spelling of 5378561 in words is "five million, three hundred seventy-eight thousand, five hundred sixty-one".