53519761 has 4 divisors (see below), whose sum is σ = 55365300. Its totient is φ = 51674224.

The previous prime is 53519759. The next prime is 53519773. The reversal of 53519761 is 16791535.

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 11022400 + 42497361 = 3320^2 + 6519^2 .

It is a cyclic number.

It is not a de Polignac number, because 53519761 - 2¹ = 53519759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53519761.

It is not an unprimeable number, because it can be changed into a prime (53519701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922726 + ... + 922783.

It is an arithmetic number, because the mean of its divisors is an integer number (13841325).

Almost surely, 2^53519761 is an apocalyptic number.

It is an amenable number.

53519761 is a deficient number, since it is larger than the sum of its proper divisors (1845539).

53519761 is a wasteful number, since it uses less digits than its factorization.

53519761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845538.

The product of its digits is 28350, while the sum is 37.

The square root of 53519761 is about 7315.7201285998. The cubic root of 53519761 is about 376.8524893896.

The spelling of 53519761 in words is "fifty-three million, five hundred nineteen thousand, seven hundred sixty-one".