53520145 has 16 divisors (see below), whose sum is σ = 73831680. Its totient is φ = 36483264.

The previous prime is 53520133. The next prime is 53520151. The reversal of 53520145 is 54102535.

It is a cyclic number.

It is not a de Polignac number, because 53520145 - 2⁵ = 53520113 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1636 + ... + 10474.

It is an arithmetic number, because the mean of its divisors is an integer number (4614480).

Almost surely, 2^53520145 is an apocalyptic number.

It is an amenable number.

53520145 is a deficient number, since it is larger than the sum of its proper divisors (20311535).

53520145 is a wasteful number, since it uses less digits than its factorization.

53520145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9024.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 53520145 is about 7315.7463734058. The cubic root of 53520145 is about 376.8533906829.

The spelling of 53520145 in words is "fifty-three million, five hundred twenty thousand, one hundred forty-five".