2405651 has 2 divisors, whose sum is σ = 2405652. Its totient is φ = 2405650.

The previous prime is 2405633. The next prime is 2405677. The reversal of 2405651 is 1565042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2405651 - 2⁶ = 2405587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2405621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202825 + 1202826.

It is an arithmetic number, because the mean of its divisors is an integer number (1202826).

2^2405651 is an apocalyptic number.

2405651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405651 is an equidigital number, since it uses as much as digits as its factorization.

2405651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2405651 is about 1551.0161185494. The cubic root of 2405651 is about 133.9915900269.

The spelling of 2405651 in words is "two million, four hundred five thousand, six hundred fifty-one".