2456651 has 2 divisors, whose sum is σ = 2456652. Its totient is φ = 2456650.

The previous prime is 2456647. The next prime is 2456693. The reversal of 2456651 is 1566542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2456651 - 2² = 2456647 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2²¹ + 4² + 5³ + 6⁴ + 6⁷ + 5⁷ + 1 .

It is not a weakly prime, because it can be changed into another prime (2456621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228325 + 1228326.

It is an arithmetic number, because the mean of its divisors is an integer number (1228326).

2^2456651 is an apocalyptic number.

2456651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2456651 is an equidigital number, since it uses as much as digits as its factorization.

2456651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 2456651 is about 1567.3707283218. The cubic root of 2456651 is about 134.9318540384.

The spelling of 2456651 in words is "two million, four hundred fifty-six thousand, six hundred fifty-one".