53000145 has 24 divisors (see below), whose sum is σ = 100219392. Its totient is φ = 25696800.

The previous prime is 53000141. The next prime is 53000153. The reversal of 53000145 is 54100035.

It is not a de Polignac number, because 53000145 - 2² = 53000141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53000141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53041 + ... + 54030.

It is an arithmetic number, because the mean of its divisors is an integer number (4175808).

Almost surely, 2^53000145 is an apocalyptic number.

53000145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53000145 is a deficient number, since it is larger than the sum of its proper divisors (47219247).

53000145 is a wasteful number, since it uses less digits than its factorization.

53000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107093 (or 107090 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 53000145 is about 7280.1198479146. The cubic root of 53000145 is about 375.6289179762.

The spelling of 53000145 in words is "fifty-three million, one hundred forty-five", and thus it is an aban number.