4025551 has 2 divisors, whose sum is σ = 4025552. Its totient is φ = 4025550.

The previous prime is 4025543. The next prime is 4025599. The reversal of 4025551 is 1555204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4025551 - 2³ = 4025543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4025501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012775 + 2012776.

It is an arithmetic number, because the mean of its divisors is an integer number (2012776).

Almost surely, 2^4025551 is an apocalyptic number.

4025551 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025551 is an equidigital number, since it uses as much as digits as its factorization.

4025551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 4025551 is about 2006.3775816132. The cubic root of 4025551 is about 159.0773854281.

The spelling of 4025551 in words is "four million, twenty-five thousand, five hundred fifty-one".