55354861565 has 8 divisors (see below), whose sum is σ = 66763022040. Its totient is φ = 44059097152.

The previous prime is 55354861531. The next prime is 55354861589. The reversal of 55354861565 is 56516845355.

It can be written as a sum of positive squares in 4 ways, for example, as 5434343524 + 49920518041 = 73718^2 + 223429^2 .

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 55354861565 - 2⁶ = 55354861501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28097930 + ... + 28099899.

It is an arithmetic number, because the mean of its divisors is an integer number (8345377755).

Almost surely, 2^55354861565 is an apocalyptic number.

It is an amenable number.

55354861565 is a deficient number, since it is larger than the sum of its proper divisors (11408160475).

55354861565 is a wasteful number, since it uses less digits than its factorization.

55354861565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56198031.

The product of its digits is 10800000, while the sum is 53.

The spelling of 55354861565 in words is "fifty-five billion, three hundred fifty-four million, eight hundred sixty-one thousand, five hundred sixty-five".