6381253 has 4 divisors (see below), whose sum is σ = 6501708. Its totient is φ = 6260800.

The previous prime is 6381251. The next prime is 6381299. The reversal of 6381253 is 3521836.

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 1979649 + 4401604 = 1407^2 + 2098^2 .

It is a cyclic number.

It is not a de Polignac number, because 6381253 - 2¹ = 6381251 is a prime.

It is a Duffinian number.

6381253 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6381251) 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, 60148 + ... + 60253.

It is an arithmetic number, because the mean of its divisors is an integer number (1625427).

Almost surely, 2^6381253 is an apocalyptic number.

It is an amenable number.

6381253 is a deficient number, since it is larger than the sum of its proper divisors (120455).

6381253 is a wasteful number, since it uses less digits than its factorization.

6381253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120454.

The product of its digits is 4320, while the sum is 28.

The square root of 6381253 is about 2526.1142096113. The cubic root of 6381253 is about 185.4820929961.

It can be divided in two parts, 638 and 1253, that added together give a triangular number (1891 = T₆₁).

The spelling of 6381253 in words is "six million, three hundred eighty-one thousand, two hundred fifty-three".