54778539001 has 2 divisors, whose sum is σ = 54778539002. Its totient is φ = 54778539000.

The previous prime is 54778538999. The next prime is 54778539061. The reversal of 54778539001 is 10093587745.

It is a happy number.

54778539001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39784291600 + 14994247401 = 199460^2 + 122451^2 .

It is a cyclic number.

It is not a de Polignac number, because 54778539001 - 2¹ = 54778538999 is a prime.

Together with 54778538999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54778539061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27389269500 + 27389269501.

It is an arithmetic number, because the mean of its divisors is an integer number (27389269501).

Almost surely, 2^54778539001 is an apocalyptic number.

It is an amenable number.

54778539001 is a deficient number, since it is larger than the sum of its proper divisors (1).

54778539001 is an equidigital number, since it uses as much as digits as its factorization.

54778539001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 54778539001 in words is "fifty-four billion, seven hundred seventy-eight million, five hundred thirty-nine thousand, one".