6253260666521 has 8 divisors (see below), whose sum is σ = 6887969385024. Its totient is φ = 5629590360720.

The previous prime is 6253260666491. The next prime is 6253260666539. The reversal of 6253260666521 is 1256660623526.

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 6253260666521 - 2²² = 6253256472217 is a prime.

It is a super-2 number, since 2×6253260666521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6253260666521.

It is not an unprimeable number, because it can be changed into a prime (6253260666551) 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, 2759601986 + ... + 2759604251.

It is an arithmetic number, because the mean of its divisors is an integer number (860996173128).

Almost surely, 2^{6253260666521} is an apocalyptic number.

It is an amenable number.

6253260666521 is a deficient number, since it is larger than the sum of its proper divisors (634708718503).

6253260666521 is a wasteful number, since it uses less digits than its factorization.

6253260666521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519206351.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 6253260666521 in words is "six trillion, two hundred fifty-three billion, two hundred sixty million, six hundred sixty-six thousand, five hundred twenty-one".