54081969 has 8 divisors (see below), whose sum is σ = 72163680. Its totient is φ = 36027456.

The previous prime is 54081941. The next prime is 54081971. The reversal of 54081969 is 96918045.

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

It is not a de Polignac number, because 54081969 - 2¹⁹ = 53557681 is a prime.

It is a super-2 number, since 2×54081969² = 5849718741833922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54081969.

It is not an unprimeable number, because it can be changed into a prime (54081919) 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, 1587 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (9020460).

Almost surely, 2^54081969 is an apocalyptic number.

It is an amenable number.

54081969 is a deficient number, since it is larger than the sum of its proper divisors (18081711).

54081969 is a wasteful number, since it uses less digits than its factorization.

54081969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13599.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 54081969 is about 7354.0443974727. The cubic root of 54081969 is about 378.1674672973.

The spelling of 54081969 in words is "fifty-four million, eighty-one thousand, nine hundred sixty-nine".