2625551 has 2 divisors, whose sum is σ = 2625552. Its totient is φ = 2625550.

The previous prime is 2625541. The next prime is 2625563. The reversal of 2625551 is 1555262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2625551 - 2⁶ = 2625487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2625551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2625521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312775 + 1312776.

It is an arithmetic number, because the mean of its divisors is an integer number (1312776).

2^2625551 is an apocalyptic number.

2625551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625551 is an equidigital number, since it uses as much as digits as its factorization.

2625551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 26.

The square root of 2625551 is about 1620.3552079714. The cubic root of 2625551 is about 137.9558599992.

The spelling of 2625551 in words is "two million, six hundred twenty-five thousand, five hundred fifty-one".