6625253 has 4 divisors (see below), whose sum is σ = 6853740. Its totient is φ = 6396768.

The previous prime is 6625247. The next prime is 6625273. The reversal of 6625253 is 3525266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2455489 + 4169764 = 1567^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 6625253 - 2⁴ = 6625237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 228457 = 6625253 / (6 + 6 + 2 + 5 + 2 + 5 + 3).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625273) 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 in 3 ways as a sum of consecutive naturals, for example, 114200 + ... + 114257.

It is an arithmetic number, because the mean of its divisors is an integer number (1713435).

Almost surely, 2^6625253 is an apocalyptic number.

It is an amenable number.

6625253 is a deficient number, since it is larger than the sum of its proper divisors (228487).

6625253 is a wasteful number, since it uses less digits than its factorization.

6625253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228486.

The product of its digits is 10800, while the sum is 29.

The square root of 6625253 is about 2573.9566818422. The cubic root of 6625253 is about 187.8166784738.

The spelling of 6625253 in words is "six million, six hundred twenty-five thousand, two hundred fifty-three".