54273981 has 8 divisors (see below), whose sum is σ = 72654624. Its totient is φ = 36038000.

The previous prime is 54273971. The next prime is 54274039. The reversal of 54273981 is 18937245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54273981 - 2⁷ = 54273853 is a prime.

It is a super-2 number, since 2×54273981² = 5891330027176722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54273971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35286 + ... + 36791.

It is an arithmetic number, because the mean of its divisors is an integer number (9081828).

Almost surely, 2^54273981 is an apocalyptic number.

It is an amenable number.

54273981 is a deficient number, since it is larger than the sum of its proper divisors (18380643).

54273981 is a wasteful number, since it uses less digits than its factorization.

54273981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72331.

The product of its digits is 60480, while the sum is 39.

The square root of 54273981 is about 7367.0876878180. The cubic root of 54273981 is about 378.6144858246.

The spelling of 54273981 in words is "fifty-four million, two hundred seventy-three thousand, nine hundred eighty-one".