53220415 has 8 divisors (see below), whose sum is σ = 63965088. Its totient is φ = 42509280.

The previous prime is 53220407. The next prime is 53220439. The reversal of 53220415 is 51402235.

53220415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53220415 - 2³ = 53220407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4747 + ... + 11356.

It is an arithmetic number, because the mean of its divisors is an integer number (7995636).

Almost surely, 2^53220415 is an apocalyptic number.

53220415 is a deficient number, since it is larger than the sum of its proper divisors (10744673).

53220415 is a wasteful number, since it uses less digits than its factorization.

53220415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16769.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 53220415 is about 7295.2323472251. The cubic root of 53220415 is about 376.1485733015.

It can be divided in two parts, 53220 and 415, that added together give a palindrome (53635).

The spelling of 53220415 in words is "fifty-three million, two hundred twenty thousand, four hundred fifteen".