53485143 has 8 divisors (see below), whose sum is σ = 74414208. Its totient is φ = 34106424.

The previous prime is 53485139. The next prime is 53485147. The reversal of 53485143 is 34158435.

53485143 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 (53485139) and next prime (53485147).

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

It is not a de Polignac number, because 53485143 - 2² = 53485139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53485147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387505 + ... + 387642.

It is an arithmetic number, because the mean of its divisors is an integer number (9301776).

Almost surely, 2^53485143 is an apocalyptic number.

53485143 is a deficient number, since it is larger than the sum of its proper divisors (20929065).

53485143 is a wasteful number, since it uses less digits than its factorization.

53485143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775173.

The product of its digits is 28800, while the sum is 33.

The square root of 53485143 is about 7313.3537450338. The cubic root of 53485143 is about 376.7712191382.

It can be divided in two parts, 53485 and 143, that added together give a triangular number (53628 = T₃₂₇).

The spelling of 53485143 in words is "fifty-three million, four hundred eighty-five thousand, one hundred forty-three".