53453145 has 32 divisors (see below), whose sum is σ = 89026560. Its totient is φ = 27357120.

The previous prime is 53453143. The next prime is 53453149. The reversal of 53453145 is 54135435.

It is not a de Polignac number, because 53453145 - 2¹ = 53453143 is a prime.

It is a super-3 number, since 3×53453145³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53453143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64222 + ... + 65048.

It is an arithmetic number, because the mean of its divisors is an integer number (2782080).

Almost surely, 2^53453145 is an apocalyptic number.

It is an amenable number.

53453145 is a deficient number, since it is larger than the sum of its proper divisors (35573415).

53453145 is a wasteful number, since it uses less digits than its factorization.

53453145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005.

The product of its digits is 18000, while the sum is 30.

The square root of 53453145 is about 7311.1657757159. The cubic root of 53453145 is about 376.6960684840.

The spelling of 53453145 in words is "fifty-three million, four hundred fifty-three thousand, one hundred forty-five".