6252645021 has 16 divisors (see below), whose sum is σ = 9856387200. Its totient is φ = 3449734848.

The previous prime is 6252645019. The next prime is 6252645029. The reversal of 6252645021 is 1205462526.

It is not a de Polignac number, because 6252645021 - 2¹ = 6252645019 is a prime.

It is a super-3 number, since 3×6252645021³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6252645029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5132926 + ... + 5134143.

It is an arithmetic number, because the mean of its divisors is an integer number (616024200).

Almost surely, 2^6252645021 is an apocalyptic number.

It is an amenable number.

6252645021 is a deficient number, since it is larger than the sum of its proper divisors (3603742179).

6252645021 is a wasteful number, since it uses less digits than its factorization.

6252645021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267108.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 6252645021 is about 79073.6683163239. The cubic root of 6252645021 is about 1842.2755617572.

The spelling of 6252645021 in words is "six billion, two hundred fifty-two million, six hundred forty-five thousand, twenty-one".