53490919 has 4 divisors (see below), whose sum is σ = 53690040. Its totient is φ = 53291800.

The previous prime is 53490917. The next prime is 53490973. The reversal of 53490919 is 91909435.

53490919 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, and also an emirpimes, since its reverse is a distinct semiprime: 91909435 = 5 ⋅18381887.

It is a cyclic number.

It is not a de Polignac number, because 53490919 - 2¹ = 53490917 is a prime.

It is a super-2 number, since 2×53490919² = 5722556830929122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53490917) 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, 99157 + ... + 99694.

It is an arithmetic number, because the mean of its divisors is an integer number (13422510).

Almost surely, 2^53490919 is an apocalyptic number.

53490919 is a deficient number, since it is larger than the sum of its proper divisors (199121).

53490919 is a wasteful number, since it uses less digits than its factorization.

53490919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199120.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 53490919 is about 7313.7486284395. The cubic root of 53490919 is about 376.7847814853.

The spelling of 53490919 in words is "fifty-three million, four hundred ninety thousand, nine hundred nineteen".