53531511145 has 32 divisors (see below), whose sum is σ = 77619225600. Its totient is φ = 34622064576.

The previous prime is 53531511113. The next prime is 53531511197. The reversal of 53531511145 is 54111513535.

53531511145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53531511145 - 2⁵ = 53531511113 is a prime.

It is a super-3 number, since 3×53531511145³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 53531511145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26355 + ... + 328264.

It is an arithmetic number, because the mean of its divisors is an integer number (2425600800).

Almost surely, 2^53531511145 is an apocalyptic number.

It is an amenable number.

53531511145 is a deficient number, since it is larger than the sum of its proper divisors (24087714455).

53531511145 is a wasteful number, since it uses less digits than its factorization.

53531511145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354877.

The product of its digits is 22500, while the sum is 34.

The spelling of 53531511145 in words is "fifty-three billion, five hundred thirty-one million, five hundred eleven thousand, one hundred forty-five".