6275645 has 4 divisors (see below), whose sum is σ = 7530780. Its totient is φ = 5020512.

The previous prime is 6275641. The next prime is 6275651. The reversal of 6275645 is 5465726.

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 4897369 + 1378276 = 2213^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 6275645 - 2² = 6275641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6275641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627560 + ... + 627569.

It is an arithmetic number, because the mean of its divisors is an integer number (1882695).

Almost surely, 2^6275645 is an apocalyptic number.

It is an amenable number.

6275645 is a deficient number, since it is larger than the sum of its proper divisors (1255135).

6275645 is a wasteful number, since it uses less digits than its factorization.

6275645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255134.

The product of its digits is 50400, while the sum is 35.

The square root of 6275645 is about 2505.1237494383. The cubic root of 6275645 is about 184.4531697646.

The spelling of 6275645 in words is "six million, two hundred seventy-five thousand, six hundred forty-five".