53521895 has 16 divisors (see below), whose sum is σ = 73820160. Its totient is φ = 36491424.

The previous prime is 53521889. The next prime is 53521901. The reversal of 53521895 is 59812535.

It is an interprime number because it is at equal distance from previous prime (53521889) and next prime (53521901).

It is a cyclic number.

It is not a de Polignac number, because 53521895 - 2¹⁰ = 53520871 is a prime.

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, 1994 + ... + 10536.

It is an arithmetic number, because the mean of its divisors is an integer number (4613760).

Almost surely, 2^53521895 is an apocalyptic number.

53521895 is a deficient number, since it is larger than the sum of its proper divisors (20298265).

53521895 is a wasteful number, since it uses less digits than its factorization.

53521895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734.

The product of its digits is 54000, while the sum is 38.

The square root of 53521895 is about 7315.8659774493. The cubic root of 53521895 is about 376.8574980849.

The spelling of 53521895 in words is "fifty-three million, five hundred twenty-one thousand, eight hundred ninety-five".