6416253 has 20 divisors (see below), whose sum is σ = 9683388. Its totient is φ = 4233600.

The previous prime is 6416251. The next prime is 6416257. The reversal of 6416253 is 3526146.

It can be written as a sum of positive squares in 2 ways, for example, as 2424249 + 3992004 = 1557^2 + 1998^2 .

It is not a de Polignac number, because 6416253 - 2¹ = 6416251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 6 + 4¹¹ + 1 + 6⁶ + 2²¹ + 5⁷ + 3² .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8803 + ... + 9503.

Almost surely, 2^6416253 is an apocalyptic number.

It is an amenable number.

6416253 is a deficient number, since it is larger than the sum of its proper divisors (3267135).

6416253 is a wasteful number, since it uses less digits than its factorization.

6416253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 817 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 6416253 is about 2533.0323724738. The cubic root of 6416253 is about 185.8205866210.

The spelling of 6416253 in words is "six million, four hundred sixteen thousand, two hundred fifty-three".