53854687 has 4 divisors (see below), whose sum is σ = 53908456. Its totient is φ = 53800920.

The previous prime is 53854663. The next prime is 53854699. The reversal of 53854687 is 78645835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78645835 = 5 ⋅15729167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53854687 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 (53854637) 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, 25353 + ... + 27394.

It is an arithmetic number, because the mean of its divisors is an integer number (13477114).

Almost surely, 2^53854687 is an apocalyptic number.

53854687 is a deficient number, since it is larger than the sum of its proper divisors (53769).

53854687 is a wasteful number, since it uses less digits than its factorization.

53854687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53768.

The product of its digits is 806400, while the sum is 46.

The square root of 53854687 is about 7338.5752704459. The cubic root of 53854687 is about 377.6369679727.

It can be divided in two parts, 538 and 54687, that added together give a square (55225 = 235²).

The spelling of 53854687 in words is "fifty-three million, eight hundred fifty-four thousand, six hundred eighty-seven".