65255223551 has 16 divisors (see below), whose sum is σ = 75594784320. Its totient is φ = 55173000960.

The previous prime is 65255223547. The next prime is 65255223589. The reversal of 65255223551 is 15532255256.

It is not a de Polignac number, because 65255223551 - 2² = 65255223547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65255223499 and 65255223508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65255228551) 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, 137885 + ... + 386681.

It is an arithmetic number, because the mean of its divisors is an integer number (4724674020).

Almost surely, 2^65255223551 is an apocalyptic number.

65255223551 is a deficient number, since it is larger than the sum of its proper divisors (10339560769).

65255223551 is a wasteful number, since it uses less digits than its factorization.

65255223551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249314.

The product of its digits is 450000, while the sum is 41.

The spelling of 65255223551 in words is "sixty-five billion, two hundred fifty-five million, two hundred twenty-three thousand, five hundred fifty-one".