53544893 has 12 divisors (see below), whose sum is σ = 56011284.
Its totient is φ = 51168000.
The previous prime is 53544889. The next prime is 53544901. The reversal of 53544893 is 39844535.
It can be written as a sum of positive squares in 6 ways, for example, as 3602404 + 49942489 = 1898^2 + 7067^2
It is not a de Polignac number, because 53544893 - 22 = 53544889 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (41).
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 53544893.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53544493) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88793 + ... + 89393.
It is an arithmetic number, because the mean of its divisors is an integer number (4667607).
Almost surely, 253544893 is an apocalyptic number.
53544893 is a gapful number since it is divisible by the number (53) formed by its first and last digit.
It is an amenable number.
53544893 is a deficient number, since it is larger than the sum of its proper divisors (2466391).
53544893 is an equidigital number, since it uses as much as digits as its factorization.
53544893 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 736 (or 695 counting only the distinct ones).
The product of its digits is 259200, while the sum is 41.
The square root of 53544893 is about 7317.4375979574.
The cubic root of 53544893 is about 376.9114680701.
The spelling of 53544893 in words is "fifty-three million, five hundred forty-four thousand, eight hundred ninety-three".