65525155553 has 8 divisors (see below), whose sum is σ = 76980602496. Its totient is φ = 54986144400.

The previous prime is 65525155547. The next prime is 65525155573. The reversal of 65525155553 is 35555152556.

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

It is not a de Polignac number, because 65525155553 - 2⁶ = 65525155489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65525155498 and 65525155507.

It is not an unprimeable number, because it can be changed into a prime (65525155523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229108793 + ... + 229109078.

It is an arithmetic number, because the mean of its divisors is an integer number (9622575312).

Almost surely, 2^65525155553 is an apocalyptic number.

It is an amenable number.

65525155553 is a deficient number, since it is larger than the sum of its proper divisors (11455446943).

65525155553 is a wasteful number, since it uses less digits than its factorization.

65525155553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458217895.

The product of its digits is 2812500, while the sum is 47.

The spelling of 65525155553 in words is "sixty-five billion, five hundred twenty-five million, one hundred fifty-five thousand, five hundred fifty-three".