53408015 has 4 divisors (see below), whose sum is σ = 64089624. Its totient is φ = 42726408.

The previous prime is 53408011. The next prime is 53408023. The reversal of 53408015 is 51080435.

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

It is a cyclic number.

It is not a de Polignac number, because 53408015 - 2² = 53408011 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 (53408011) 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, 5340797 + ... + 5340806.

It is an arithmetic number, because the mean of its divisors is an integer number (16022406).

Almost surely, 2^53408015 is an apocalyptic number.

53408015 is a deficient number, since it is larger than the sum of its proper divisors (10681609).

53408015 is a wasteful number, since it uses less digits than its factorization.

53408015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681608.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 53408015 is about 7308.0787488915. The cubic root of 53408015 is about 376.5900249561.

The spelling of 53408015 in words is "fifty-three million, four hundred eight thousand, fifteen".