53475215 has 8 divisors (see below), whose sum is σ = 67547760. Its totient is φ = 40528512.

The previous prime is 53475211. The next prime is 53475229. The reversal of 53475215 is 51257435.

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

It is a cyclic number.

It is not a de Polignac number, because 53475215 - 2² = 53475211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53475211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281354 + ... + 281543.

It is an arithmetic number, because the mean of its divisors is an integer number (8443470).

Almost surely, 2^53475215 is an apocalyptic number.

53475215 is a deficient number, since it is larger than the sum of its proper divisors (14072545).

53475215 is a wasteful number, since it uses less digits than its factorization.

53475215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562921.

The product of its digits is 21000, while the sum is 32.

The square root of 53475215 is about 7312.6749551720. The cubic root of 53475215 is about 376.7479053983.

The spelling of 53475215 in words is "fifty-three million, four hundred seventy-five thousand, two hundred fifteen".