54160681 has 2 divisors, whose sum is σ = 54160682. Its totient is φ = 54160680.

The previous prime is 54160669. The next prime is 54160709. The reversal of 54160681 is 18606145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53890281 + 270400 = 7341^2 + 520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54160681 is a prime.

It is a super-2 number, since 2×54160681² = 5866758732767522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54160651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27080340 + 27080341.

It is an arithmetic number, because the mean of its divisors is an integer number (27080341).

Almost surely, 2^54160681 is an apocalyptic number.

It is an amenable number.

54160681 is a deficient number, since it is larger than the sum of its proper divisors (1).

54160681 is an equidigital number, since it uses as much as digits as its factorization.

54160681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 54160681 is about 7359.3940647311. The cubic root of 54160681 is about 378.3508425767.

The spelling of 54160681 in words is "fifty-four million, one hundred sixty thousand, six hundred eighty-one".