52405855 has 4 divisors (see below), whose sum is σ = 62887032. Its totient is φ = 41924680.

The previous prime is 52405853. The next prime is 52405861. The reversal of 52405855 is 55850425.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52405855 - 2¹ = 52405853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52405855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52405853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5240581 + ... + 5240590.

It is an arithmetic number, because the mean of its divisors is an integer number (15721758).

Almost surely, 2^52405855 is an apocalyptic number.

52405855 is a deficient number, since it is larger than the sum of its proper divisors (10481177).

52405855 is a wasteful number, since it uses less digits than its factorization.

52405855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481176.

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 52405855 is about 7239.1888357744. The cubic root of 52405855 is about 374.2196632511.

The spelling of 52405855 in words is "fifty-two million, four hundred five thousand, eight hundred fifty-five".