2651489 has 2 divisors, whose sum is σ = 2651490. Its totient is φ = 2651488.

The previous prime is 2651483. The next prime is 2651491. The reversal of 2651489 is 9841562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 43264 = 1615^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 2651489 - 2¹⁶ = 2585953 is a prime.

Together with 2651491, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2651483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325744 + 1325745.

It is an arithmetic number, because the mean of its divisors is an integer number (1325745).

2^2651489 is an apocalyptic number.

It is an amenable number.

2651489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651489 is an equidigital number, since it uses as much as digits as its factorization.

2651489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 2651489 is about 1628.3393380988. The cubic root of 2651489 is about 138.4086639915.

It can be divided in two parts, 26 and 51489, that added together give a palindrome (51515).

The spelling of 2651489 in words is "two million, six hundred fifty-one thousand, four hundred eighty-nine".