54905019 has 16 divisors (see below), whose sum is σ = 83476512. Its totient is φ = 31799808.

The previous prime is 54905009. The next prime is 54905047. The reversal of 54905019 is 91050945.

It is not a de Polignac number, because 54905019 - 2¹⁶ = 54839483 is a prime.

It is a super-2 number, since 2×54905019² = 6029122222780722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54905009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40744 + ... + 42069.

It is an arithmetic number, because the mean of its divisors is an integer number (5217282).

Almost surely, 2^54905019 is an apocalyptic number.

54905019 is a deficient number, since it is larger than the sum of its proper divisors (28571493).

54905019 is a wasteful number, since it uses less digits than its factorization.

54905019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82846.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 54905019 is about 7409.7921023467. The cubic root of 54905019 is about 380.0762058615.

The spelling of 54905019 in words is "fifty-four million, nine hundred five thousand, nineteen".