6555025641 has 8 divisors (see below), whose sum is σ = 8740558944. Its totient is φ = 4369754720.

The previous prime is 6555025639. The next prime is 6555025661. The reversal of 6555025641 is 1465205556.

It is a happy number.

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 6555025641 - 2¹ = 6555025639 is a prime.

It is a super-2 number, since 2×6555025641² = 85936722308334921762, which contains 22 as substring.

6555025641 is a modest number, since divided by 25641 gives 6555 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 6555025641.

It is not an unprimeable number, because it can be changed into a prime (6555025621) 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, 2926 + ... + 114536.

It is an arithmetic number, because the mean of its divisors is an integer number (1092569868).

Almost surely, 2^6555025641 is an apocalyptic number.

It is an amenable number.

6555025641 is a deficient number, since it is larger than the sum of its proper divisors (2185533303).

6555025641 is a wasteful number, since it uses less digits than its factorization.

6555025641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131191.

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 6555025641 is about 80963.1128415898. The cubic root of 6555025641 is about 1871.5070392185.

The spelling of 6555025641 in words is "six billion, five hundred fifty-five million, twenty-five thousand, six hundred forty-one".