54021081 has 8 divisors (see below), whose sum is σ = 72352000. Its totient is φ = 35852112.

The previous prime is 54021059. The next prime is 54021083. The reversal of 54021081 is 18012045.

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

It is not a de Polignac number, because 54021081 - 2⁶ = 54021017 is a prime.

It is a super-2 number, since 2×54021081² = 5836554384817122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54021083) 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, 39706 + ... + 41043.

It is an arithmetic number, because the mean of its divisors is an integer number (9044000).

Almost surely, 2^54021081 is an apocalyptic number.

It is an amenable number.

54021081 is a deficient number, since it is larger than the sum of its proper divisors (18330919).

54021081 is a wasteful number, since it uses less digits than its factorization.

54021081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80975.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 54021081 is about 7349.9034687539. The cubic root of 54021081 is about 378.0254944872.

The spelling of 54021081 in words is "fifty-four million, twenty-one thousand, eighty-one".