53501885 has 4 divisors (see below), whose sum is σ = 64202268. Its totient is φ = 42801504.

The previous prime is 53501879. The next prime is 53501909. The reversal of 53501885 is 58810535.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15888196 + 37613689 = 3986^2 + 6133^2 .

It is a cyclic number.

It is not a de Polignac number, because 53501885 - 2⁴ = 53501869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5350184 + ... + 5350193.

It is an arithmetic number, because the mean of its divisors is an integer number (16050567).

Almost surely, 2^53501885 is an apocalyptic number.

It is an amenable number.

53501885 is a deficient number, since it is larger than the sum of its proper divisors (10700383).

53501885 is a wasteful number, since it uses less digits than its factorization.

53501885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10700382.

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 53501885 is about 7314.4982739761. The cubic root of 53501885 is about 376.8105275351.

The spelling of 53501885 in words is "fifty-three million, five hundred one thousand, eight hundred eighty-five".