6215057997 has 8 divisors (see below), whose sum is σ = 8332527840. Its totient is φ = 4120480080.

The previous prime is 6215057993. The next prime is 6215058001. The reversal of 6215057997 is 7997505126.

It is an interprime number because it is at equal distance from previous prime (6215057993) and next prime (6215058001).

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

It is not a de Polignac number, because 6215057997 - 2² = 6215057993 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6215057993) 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, 5722347 + ... + 5723432.

It is an arithmetic number, because the mean of its divisors is an integer number (1041565980).

Almost surely, 2^6215057997 is an apocalyptic number.

It is an amenable number.

6215057997 is a deficient number, since it is larger than the sum of its proper divisors (2117469843).

6215057997 is a wasteful number, since it uses less digits than its factorization.

6215057997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11445963.

The product of its (nonzero) digits is 1190700, while the sum is 51.

The square root of 6215057997 is about 78835.6391297743. The cubic root of 6215057997 is about 1838.5766005040.

The spelling of 6215057997 in words is "six billion, two hundred fifteen million, fifty-seven thousand, nine hundred ninety-seven".