61000055550305 has 8 divisors (see below), whose sum is σ = 73954706523432. Its totient is φ = 48296951198208.

The previous prime is 61000055550251. The next prime is 61000055550409. The reversal of 61000055550305 is 50305555000016.

It can be written as a sum of positive squares in 4 ways, for example, as 2451175378129 + 58548880172176 = 1565623^2 + 7651724^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61000055550305 is a prime.

It is a Duffinian number.

It is a Curzon 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, 62886654722 + ... + 62886655691.

It is an arithmetic number, because the mean of its divisors is an integer number (9244338315429).

Almost surely, 2^{61000055550305} is an apocalyptic number.

It is an amenable number.

61000055550305 is a deficient number, since it is larger than the sum of its proper divisors (12954650973127).

61000055550305 is a wasteful number, since it uses less digits than its factorization.

61000055550305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125773310515.

The product of its (nonzero) digits is 56250, while the sum is 35.

The spelling of 61000055550305 in words is "sixty-one trillion, fifty-five million, five hundred fifty thousand, three hundred five".