6253645 has 8 divisors (see below), whose sum is σ = 7577856. Its totient is φ = 4953936.

The previous prime is 6253633. The next prime is 6253669. The reversal of 6253645 is 5463526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6253645 - 2⁷ = 6253517 is a prime.

It is a super-3 number, since 3×6253645³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

6253645 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5557 + ... + 6586.

It is an arithmetic number, because the mean of its divisors is an integer number (947232).

Almost surely, 2^6253645 is an apocalyptic number.

It is an amenable number.

6253645 is a deficient number, since it is larger than the sum of its proper divisors (1324211).

6253645 is a wasteful number, since it uses less digits than its factorization.

6253645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12251.

The product of its digits is 21600, while the sum is 31.

The square root of 6253645 is about 2500.7288937428. The cubic root of 6253645 is about 184.2373767592.

The spelling of 6253645 in words is "six million, two hundred fifty-three thousand, six hundred forty-five".