54069887 has 4 divisors (see below), whose sum is σ = 54226056. Its totient is φ = 53913720.

The previous prime is 54069817. The next prime is 54069889. The reversal of 54069887 is 78896045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78896045 = 5 ⋅15779209.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54069887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54069889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77564 + ... + 78257.

It is an arithmetic number, because the mean of its divisors is an integer number (13556514).

Almost surely, 2^54069887 is an apocalyptic number.

54069887 is a deficient number, since it is larger than the sum of its proper divisors (156169).

54069887 is a wasteful number, since it uses less digits than its factorization.

54069887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156168.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 54069887 is about 7353.2228988383. Note that the first 3 decimals coincide. The cubic root of 54069887 is about 378.1393041239.

The spelling of 54069887 in words is "fifty-four million, sixty-nine thousand, eight hundred eighty-seven".