53261161045 has 16 divisors (see below), whose sum is σ = 64834078320. Its totient is φ = 41999192064.

The previous prime is 53261161021. The next prime is 53261161049. The reversal of 53261161045 is 54016116235.

53261161045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1389276529 + 51871884516 = 37273^2 + 227754^2 .

It is a cyclic number.

It is not a de Polignac number, because 53261161045 - 2⁵ = 53261161013 is a prime.

It is a super-2 number, since 2×53261161045² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53261161045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53261161049) 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, 147994 + ... + 358363.

It is an arithmetic number, because the mean of its divisors is an integer number (4052129895).

Almost surely, 2^53261161045 is an apocalyptic number.

It is an amenable number.

53261161045 is a deficient number, since it is larger than the sum of its proper divisors (11572917275).

53261161045 is a wasteful number, since it uses less digits than its factorization.

53261161045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506664.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 53261161045 in words is "fifty-three billion, two hundred sixty-one million, one hundred sixty-one thousand, forty-five".