53431405145 has 8 divisors (see below), whose sum is σ = 64122869256. Its totient is φ = 42741668736.

The previous prime is 53431405121. The next prime is 53431405177. The reversal of 53431405145 is 54150413435.

It can be written as a sum of positive squares in 4 ways, for example, as 36336365641 + 17095039504 = 190621^2 + 130748^2 .

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 53431405145 - 2⁶ = 53431405081 is a prime.

It is a Duffinian number.

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, 362882 + ... + 488411.

It is an arithmetic number, because the mean of its divisors is an integer number (8015358657).

Almost surely, 2^53431405145 is an apocalyptic number.

It is an amenable number.

53431405145 is a deficient number, since it is larger than the sum of its proper divisors (10691464111).

53431405145 is a wasteful number, since it uses less digits than its factorization.

53431405145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863851.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 53431405145 in words is "fifty-three billion, four hundred thirty-one million, four hundred five thousand, one hundred forty-five".