6555259057 has 4 divisors (see below), whose sum is σ = 6556366180. Its totient is φ = 6554151936.

The previous prime is 6555259001. The next prime is 6555259063. The reversal of 6555259057 is 7509525556.

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 1253089201 + 5302169856 = 35399^2 + 72816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6555259057 is a prime.

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 6555259057.

It is not an unprimeable number, because it can be changed into a prime (6555259157) 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, 544632 + ... + 556537.

It is an arithmetic number, because the mean of its divisors is an integer number (1639091545).

Almost surely, 2^6555259057 is an apocalyptic number.

It is an amenable number.

6555259057 is a deficient number, since it is larger than the sum of its proper divisors (1107123).

6555259057 is a wasteful number, since it uses less digits than its factorization.

6555259057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107122.

The product of its (nonzero) digits is 2362500, while the sum is 49.

The square root of 6555259057 is about 80964.5543247167. The cubic root of 6555259057 is about 1871.5292529379.

It can be divided in two parts, 65552 and 59057, that added together give a square (124609 = 353²).

The spelling of 6555259057 in words is "six billion, five hundred fifty-five million, two hundred fifty-nine thousand, fifty-seven".