2640527 has 2 divisors, whose sum is σ = 2640528. Its totient is φ = 2640526.

The previous prime is 2640511. The next prime is 2640551. The reversal of 2640527 is 7250462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2640527 - 2⁴ = 2640511 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2640496 and 2640505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320263 + 1320264.

It is an arithmetic number, because the mean of its divisors is an integer number (1320264).

2^2640527 is an apocalyptic number.

2640527 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640527 is an equidigital number, since it uses as much as digits as its factorization.

2640527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2640527 is about 1624.9698458741. The cubic root of 2640527 is about 138.2176604354.

Adding to 2640527 its reverse (7250462), we get a palindrome (9890989).

The spelling of 2640527 in words is "two million, six hundred forty thousand, five hundred twenty-seven".