53515001 has 12 divisors (see below), whose sum is σ = 57566052. Its totient is φ = 49724064.

The previous prime is 53514973. The next prime is 53515009. The reversal of 53515001 is 10051535.

It is a happy number.

53515001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39075001 + 14440000 = 6251^2 + 3800^2 .

It is not a de Polignac number, because 53515001 - 2²² = 49320697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53515009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17735 + ... + 20531.

It is an arithmetic number, because the mean of its divisors is an integer number (4797171).

Almost surely, 2^53515001 is an apocalyptic number.

It is an amenable number.

53515001 is a deficient number, since it is larger than the sum of its proper divisors (4051051).

53515001 is a wasteful number, since it uses less digits than its factorization.

53515001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 53515001 is about 7315.3947945412. The cubic root of 53515001 is about 376.8413167498.

Adding to 53515001 its reverse (10051535), we get a palindrome (63566536).

The spelling of 53515001 in words is "fifty-three million, five hundred fifteen thousand, one".