2615653 has 2 divisors, whose sum is σ = 2615654. Its totient is φ = 2615652.

The previous prime is 2615651. The next prime is 2615659. The reversal of 2615653 is 3565162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122849 + 492804 = 1457^2 + 702^2 .

It is a cyclic number.

It is not a de Polignac number, because 2615653 - 2¹ = 2615651 is a prime.

Together with 2615651, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2615651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307826 + 1307827.

It is an arithmetic number, because the mean of its divisors is an integer number (1307827).

2^2615653 is an apocalyptic number.

It is an amenable number.

2615653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615653 is an equidigital number, since it uses as much as digits as its factorization.

2615653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 28.

The square root of 2615653 is about 1617.2980553998. The cubic root of 2615653 is about 137.7822828960.

The spelling of 2615653 in words is "two million, six hundred fifteen thousand, six hundred fifty-three".