54680335921 has 8 divisors (see below), whose sum is σ = 54903519720. Its totient is φ = 54457233408.

The previous prime is 54680335877. The next prime is 54680335943. The reversal of 54680335921 is 12953308645.

It can be written as a sum of positive squares in 4 ways, for example, as 31778053696 + 22902282225 = 178264^2 + 151335^2 .

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 54680335921 - 2⁷ = 54680335793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54680335981) 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, 1583775 + ... + 1617931.

It is an arithmetic number, because the mean of its divisors is an integer number (6862939965).

Almost surely, 2^54680335921 is an apocalyptic number.

It is an amenable number.

54680335921 is a deficient number, since it is larger than the sum of its proper divisors (223183799).

54680335921 is a wasteful number, since it uses less digits than its factorization.

54680335921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40643.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 54680335921 in words is "fifty-four billion, six hundred eighty million, three hundred thirty-five thousand, nine hundred twenty-one".