53487849 has 12 divisors (see below), whose sum is σ = 71855408. Its totient is φ = 35391000.

The previous prime is 53487839. The next prime is 53487881. The reversal of 53487849 is 94878435.

53487849 = 286² + 287² + ... + 568².

It is not a de Polignac number, because 53487849 - 2¹² = 53483753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53487798 and 53487807.

It is not an unprimeable number, because it can be changed into a prime (53487839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188862 + ... + 189144.

Almost surely, 2^53487849 is an apocalyptic number.

It is an amenable number.

53487849 is a deficient number, since it is larger than the sum of its proper divisors (18367559).

53487849 is an equidigital number, since it uses as much as digits as its factorization.

53487849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 537 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 53487849 is about 7313.5387467354. The cubic root of 53487849 is about 376.7775730879. Note that the first 3 decimals are identical.

The spelling of 53487849 in words is "fifty-three million, four hundred eighty-seven thousand, eight hundred forty-nine".