6545897555 has 16 divisors (see below), whose sum is σ = 7911552960. Its totient is φ = 5199123072.

The previous prime is 6545897551. The next prime is 6545897563. The reversal of 6545897555 is 5557985456.

It is a cyclic number.

It is not a de Polignac number, because 6545897555 - 2² = 6545897551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6545897494 and 6545897503.

It is not an unprimeable number, because it can be changed into a prime (6545897551) 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, 1258901 + ... + 1264089.

It is an arithmetic number, because the mean of its divisors is an integer number (494472060).

Almost surely, 2^6545897555 is an apocalyptic number.

6545897555 is a deficient number, since it is larger than the sum of its proper divisors (1365655405).

6545897555 is a wasteful number, since it uses less digits than its factorization.

6545897555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6958.

The product of its digits is 37800000, while the sum is 59.

The square root of 6545897555 is about 80906.7213215317. The cubic root of 6545897555 is about 1870.6379242344.

The spelling of 6545897555 in words is "six billion, five hundred forty-five million, eight hundred ninety-seven thousand, five hundred fifty-five".