54021991039 has 8 divisors (see below), whose sum is σ = 55519716560. Its totient is φ = 52535238336.

The previous prime is 54021991013. The next prime is 54021991069. The reversal of 54021991039 is 93019912045.

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 54021991039 - 2¹⁵ = 54021958271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54021990986 and 54021991004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021991069) 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, 2733222 + ... + 2752915.

It is an arithmetic number, because the mean of its divisors is an integer number (6939964570).

Almost surely, 2^54021991039 is an apocalyptic number.

54021991039 is a deficient number, since it is larger than the sum of its proper divisors (1497725521).

54021991039 is a wasteful number, since it uses less digits than its factorization.

54021991039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486409.

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 54021991039 in words is "fifty-four billion, twenty-one million, nine hundred ninety-one thousand, thirty-nine".