53531520145 has 8 divisors (see below), whose sum is σ = 64464814656. Its totient is φ = 42673889136.

The previous prime is 53531520121. The next prime is 53531520169. The reversal of 53531520145 is 54102513535.

53531520145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53531520121) and next prime (53531520169).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53531520145 - 2⁹ = 53531519633 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 53531520145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18914317 + ... + 18917146.

It is an arithmetic number, because the mean of its divisors is an integer number (8058101832).

Almost surely, 2^53531520145 is an apocalyptic number.

It is an amenable number.

53531520145 is a deficient number, since it is larger than the sum of its proper divisors (10933294511).

53531520145 is a wasteful number, since it uses less digits than its factorization.

53531520145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37831751.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 53531520145 in words is "fifty-three billion, five hundred thirty-one million, five hundred twenty thousand, one hundred forty-five".