53355215 has 16 divisors (see below), whose sum is σ = 66566880. Its totient is φ = 41005440.

The previous prime is 53355187. The next prime is 53355223. The reversal of 53355215 is 51255335.

It is not a de Polignac number, because 53355215 - 2¹⁸ = 53093071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32105 + ... + 33725.

It is an arithmetic number, because the mean of its divisors is an integer number (4160430).

Almost surely, 2^53355215 is an apocalyptic number.

53355215 is a deficient number, since it is larger than the sum of its proper divisors (13211665).

53355215 is a wasteful number, since it uses less digits than its factorization.

53355215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882.

The product of its digits is 11250, while the sum is 29.

The square root of 53355215 is about 7304.4654150732. The cubic root of 53355215 is about 376.4658831055.

The spelling of 53355215 in words is "fifty-three million, three hundred fifty-five thousand, two hundred fifteen".