53525215 has 8 divisors (see below), whose sum is σ = 64699920. Its totient is φ = 42507072.

The previous prime is 53525203. The next prime is 53525221. The reversal of 53525215 is 51252535.

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 53525215 - 2⁵ = 53525183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38385 + ... + 39754.

It is an arithmetic number, because the mean of its divisors is an integer number (8087490).

Almost surely, 2^53525215 is an apocalyptic number.

53525215 is a deficient number, since it is larger than the sum of its proper divisors (11174705).

53525215 is a wasteful number, since it uses less digits than its factorization.

53525215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78281.

The product of its digits is 7500, while the sum is 28.

The square root of 53525215 is about 7316.0928780326. The cubic root of 53525215 is about 376.8652901671.

The spelling of 53525215 in words is "fifty-three million, five hundred twenty-five thousand, two hundred fifteen".