54788789 has 8 divisors (see below), whose sum is σ = 59912832. Its totient is φ = 49688640.

The previous prime is 54788759. The next prime is 54788809. The reversal of 54788789 is 98788745.

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 54788789 - 2²⁴ = 38011573 is a prime.

It is a super-2 number, since 2×54788789² = 6003622800173042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54788719) 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, 989 + ... + 10514.

It is an arithmetic number, because the mean of its divisors is an integer number (7489104).

Almost surely, 2^54788789 is an apocalyptic number.

It is an amenable number.

54788789 is a deficient number, since it is larger than the sum of its proper divisors (5124043).

54788789 is a wasteful number, since it uses less digits than its factorization.

54788789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11947.

The product of its digits is 4515840, while the sum is 56.

The square root of 54788789 is about 7401.9449471068. The cubic root of 54788789 is about 379.8078183347.

The spelling of 54788789 in words is "fifty-four million, seven hundred eighty-eight thousand, seven hundred eighty-nine".