2545651 has 2 divisors, whose sum is σ = 2545652. Its totient is φ = 2545650.

The previous prime is 2545633. The next prime is 2545657. The reversal of 2545651 is 1565452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2545651 - 2⁵ = 2545619 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272825 + 1272826.

It is an arithmetic number, because the mean of its divisors is an integer number (1272826).

2^2545651 is an apocalyptic number.

2545651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545651 is an equidigital number, since it uses as much as digits as its factorization.

2545651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 28.

The square root of 2545651 is about 1595.5096364485. The cubic root of 2545651 is about 136.5420087441.

The spelling of 2545651 in words is "two million, five hundred forty-five thousand, six hundred fifty-one".