53554387 has 4 divisors (see below), whose sum is σ = 55401120. Its totient is φ = 51707656.

The previous prime is 53554381. The next prime is 53554409. The reversal of 53554387 is 78345535.

53554387 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: 78345535 = 5 ⋅15669107.

It is a cyclic number.

It is not a de Polignac number, because 53554387 - 2¹⁵ = 53521619 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53554381) 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, 923323 + ... + 923380.

It is an arithmetic number, because the mean of its divisors is an integer number (13850280).

Almost surely, 2^53554387 is an apocalyptic number.

53554387 is a deficient number, since it is larger than the sum of its proper divisors (1846733).

53554387 is a wasteful number, since it uses less digits than its factorization.

53554387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846732.

The product of its digits is 252000, while the sum is 40.

The square root of 53554387 is about 7318.0862935606. The cubic root of 53554387 is about 376.9337433723.

The spelling of 53554387 in words is "fifty-three million, five hundred fifty-four thousand, three hundred eighty-seven".