54266981 has 2 divisors, whose sum is σ = 54266982. Its totient is φ = 54266980.

The previous prime is 54266969. The next prime is 54267011. The reversal of 54266981 is 18966245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 9025 = 7366^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 54266981 - 2²² = 50072677 is a prime.

It is a super-3 number, since 3×54266981³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54266921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27133490 + 27133491.

It is an arithmetic number, because the mean of its divisors is an integer number (27133491).

Almost surely, 2^54266981 is an apocalyptic number.

It is an amenable number.

54266981 is a deficient number, since it is larger than the sum of its proper divisors (1).

54266981 is an equidigital number, since it uses as much as digits as its factorization.

54266981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 54266981 is about 7366.6125865285. The cubic root of 54266981 is about 378.5982078261.

The spelling of 54266981 in words is "fifty-four million, two hundred sixty-six thousand, nine hundred eighty-one".