61056434375053 has 16 divisors (see below), whose sum is σ = 66161006703792. Its totient is φ = 56010557376000.

The previous prime is 61056434374993. The next prime is 61056434375119. The reversal of 61056434375053 is 35057343465016.

It can be written as a sum of positive squares in 8 ways, for example, as 29203075496169 + 31853358878884 = 5403987^2 + 5643878^2 .

It is a cyclic number.

It is not a de Polignac number, because 61056434375053 - 2⁴¹ = 58857411119501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61056434370053) 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, 5275618 + ... + 12245203.

It is an arithmetic number, because the mean of its divisors is an integer number (4135062918987).

Almost surely, 2^{61056434375053} is an apocalyptic number.

It is an amenable number.

61056434375053 is a deficient number, since it is larger than the sum of its proper divisors (5104572328739).

61056434375053 is a wasteful number, since it uses less digits than its factorization.

61056434375053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522496.

The product of its (nonzero) digits is 13608000, while the sum is 52.

The spelling of 61056434375053 in words is "sixty-one trillion, fifty-six billion, four hundred thirty-four million, three hundred seventy-five thousand, fifty-three".