54921019 has 4 divisors (see below), whose sum is σ = 56198296. Its totient is φ = 53643744.

The previous prime is 54920993. The next prime is 54921029. The reversal of 54921019 is 91012945.

54921019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54921019 - 2⁷ = 54920891 is a prime.

It is a super-2 number, since 2×54921019² = 6032636655996722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54921029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638574 + ... + 638659.

It is an arithmetic number, because the mean of its divisors is an integer number (14049574).

Almost surely, 2^54921019 is an apocalyptic number.

54921019 is a deficient number, since it is larger than the sum of its proper divisors (1277277).

54921019 is a wasteful number, since it uses less digits than its factorization.

54921019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277276.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 54921019 is about 7410.8716761256. The cubic root of 54921019 is about 380.1131219078.

The spelling of 54921019 in words is "fifty-four million, nine hundred twenty-one thousand, nineteen".