2625643 has 2 divisors, whose sum is σ = 2625644. Its totient is φ = 2625642.

The previous prime is 2625641. The next prime is 2625653. The reversal of 2625643 is 3465262.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2625643 - 2¹ = 2625641 is a prime.

Together with 2625641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2625641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312821 + 1312822.

It is an arithmetic number, because the mean of its divisors is an integer number (1312822).

2^2625643 is an apocalyptic number.

2625643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625643 is an equidigital number, since it uses as much as digits as its factorization.

2625643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 2625643 is about 1620.3835965598. The cubic root of 2625643 is about 137.9574713169.

The spelling of 2625643 in words is "two million, six hundred twenty-five thousand, six hundred forty-three".