53685090194121 has 27 divisors (see below), whose sum is σ = 78164594175213. Its totient is φ = 35506402225560.

The previous prime is 53685090194111. The next prime is 53685090194167. The reversal of 53685090194121 is 12149109058635.

The square root of 53685090194121 is 7327011.

It is a perfect power (a square), and thus also a powerful number.

53685090194121 is a `hidden beast` number, since 5 + 3 + 6 + 8 + 509 + 0 + 1 + 9 + 4 + 121 = 666.

It is not a de Polignac number, because 53685090194121 - 2²⁹ = 53684553323209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53685090194111) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2791581576 + ... + 2791600806.

Almost surely, 2^{53685090194121} is an apocalyptic number.

53685090194121 is the 7327011-st square number.

53685090194121 is the 3663506-th centered octagonal number.

It is an amenable number.

53685090194121 is a deficient number, since it is larger than the sum of its proper divisors (24479503981092).

53685090194121 is an frugal number, since it uses more digits than its factorization.

53685090194121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38722 (or 19361 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 53685090194121 in words is "fifty-three trillion, six hundred eighty-five billion, ninety million, one hundred ninety-four thousand, one hundred twenty-one".