54140473 has 2 divisors, whose sum is σ = 54140474. Its totient is φ = 54140472.

The previous prime is 54140407. The next prime is 54140479. The reversal of 54140473 is 37404145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43401744 + 10738729 = 6588^2 + 3277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54140473 is a prime.

It is equal to p_3234088 and since 54140473 and 3234088 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (54140479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27070236 + 27070237.

It is an arithmetic number, because the mean of its divisors is an integer number (27070237).

Almost surely, 2^54140473 is an apocalyptic number.

It is an amenable number.

54140473 is a deficient number, since it is larger than the sum of its proper divisors (1).

54140473 is an equidigital number, since it uses as much as digits as its factorization.

54140473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 54140473 is about 7358.0209975237. The cubic root of 54140473 is about 378.3037809766.

It can be divided in two parts, 541 and 40473, that added together give a palindrome (41014).

The spelling of 54140473 in words is "fifty-four million, one hundred forty thousand, four hundred seventy-three".