65012800553 has 4 divisors (see below), whose sum is σ = 65014825428. Its totient is φ = 65010775680.

The previous prime is 65012800549. The next prime is 65012800609. The reversal of 65012800553 is 35500821056.

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 55390563904 + 9622236649 = 235352^2 + 98093^2 .

It is a cyclic number.

It is not a de Polignac number, because 65012800553 - 2² = 65012800549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65012800453) 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, 963488 + ... + 1028753.

It is an arithmetic number, because the mean of its divisors is an integer number (16253706357).

Almost surely, 2^65012800553 is an apocalyptic number.

It is an amenable number.

65012800553 is a deficient number, since it is larger than the sum of its proper divisors (2024875).

65012800553 is a wasteful number, since it uses less digits than its factorization.

65012800553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024874.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 65012800553 in words is "sixty-five billion, twelve million, eight hundred thousand, five hundred fifty-three".