54478901 has 2 divisors, whose sum is σ = 54478902. Its totient is φ = 54478900.

The previous prime is 54478877. The next prime is 54478903. The reversal of 54478901 is 10987445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 5058001 = 7030^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 54478901 - 2¹⁴ = 54462517 is a prime.

Together with 54478903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54478903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27239450 + 27239451.

It is an arithmetic number, because the mean of its divisors is an integer number (27239451).

Almost surely, 2^54478901 is an apocalyptic number.

It is an amenable number.

54478901 is a deficient number, since it is larger than the sum of its proper divisors (1).

54478901 is an equidigital number, since it uses as much as digits as its factorization.

54478901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 54478901 is about 7380.9823871894. The cubic root of 54478901 is about 379.0903936639.

The spelling of 54478901 in words is "fifty-four million, four hundred seventy-eight thousand, nine hundred one".