6252421 has 8 divisors (see below), whose sum is σ = 7376384. Its totient is φ = 5186160.

The previous prime is 6252419. The next prime is 6252427. The reversal of 6252421 is 1242526.

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

It is not a de Polignac number, because 6252421 - 2¹ = 6252419 is a prime.

It is a super-3 number, since 3×6252421³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6252392 and 6252401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6252427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14190 + ... + 14623.

It is an arithmetic number, because the mean of its divisors is an integer number (922048).

Almost surely, 2^6252421 is an apocalyptic number.

It is an amenable number.

6252421 is a deficient number, since it is larger than the sum of its proper divisors (1123963).

6252421 is a wasteful number, since it uses less digits than its factorization.

6252421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28851.

The product of its digits is 960, while the sum is 22.

The square root of 6252421 is about 2500.4841531192. The cubic root of 6252421 is about 184.2253559690.

Adding to 6252421 its reverse (1242526), we get a palindrome (7494947).

The spelling of 6252421 in words is "six million, two hundred fifty-two thousand, four hundred twenty-one".