53405854 has 4 divisors (see below), whose sum is σ = 80108784. Its totient is φ = 26702926.

The previous prime is 53405843. The next prime is 53405879. The reversal of 53405854 is 45850435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45850435 = 5 ⋅9170087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13351462 + ... + 13351465.

It is an arithmetic number, because the mean of its divisors is an integer number (20027196).

Almost surely, 2^53405854 is an apocalyptic number.

53405854 is a deficient number, since it is larger than the sum of its proper divisors (26702930).

53405854 is a wasteful number, since it uses less digits than its factorization.

53405854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26702929.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 53405854 is about 7307.9308973197. The cubic root of 53405854 is about 376.5849456809.

The spelling of 53405854 in words is "fifty-three million, four hundred five thousand, eight hundred fifty-four".