54681019 has 2 divisors, whose sum is σ = 54681020. Its totient is φ = 54681018.

The previous prime is 54680999. The next prime is 54681043. The reversal of 54681019 is 91018645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54681019 - 2⁵ = 54680987 is a prime.

It is a super-2 number, since 2×54681019² = 5980027677756722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54681719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27340509 + 27340510.

It is an arithmetic number, because the mean of its divisors is an integer number (27340510).

Almost surely, 2^54681019 is an apocalyptic number.

54681019 is a deficient number, since it is larger than the sum of its proper divisors (1).

54681019 is an equidigital number, since it uses as much as digits as its factorization.

54681019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 54681019 is about 7394.6615203132. The cubic root of 54681019 is about 379.5586265049.

The spelling of 54681019 in words is "fifty-four million, six hundred eighty-one thousand, nineteen".