53145292881 has 8 divisors (see below), whose sum is σ = 70870597984. Its totient is φ = 35425091520.

The previous prime is 53145292873. The next prime is 53145292931. The reversal of 53145292881 is 18829254135.

53145292881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53145292881 - 2³ = 53145292873 is a prime.

It is a super-2 number, since 2×53145292881² (a number of 22 digits) contains 22 as substring.

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 53145292881.

It is not an unprimeable number, because it can be changed into a prime (53145292801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251571 + ... + 1293336.

It is an arithmetic number, because the mean of its divisors is an integer number (8858824748).

Almost surely, 2^53145292881 is an apocalyptic number.

It is an amenable number.

53145292881 is a deficient number, since it is larger than the sum of its proper divisors (17725305103).

53145292881 is a wasteful number, since it uses less digits than its factorization.

53145292881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551871.

The product of its digits is 691200, while the sum is 48.

The spelling of 53145292881 in words is "fifty-three billion, one hundred forty-five million, two hundred ninety-two thousand, eight hundred eighty-one".