53421485 has 8 divisors (see below), whose sum is σ = 69037080. Its totient is φ = 39449664.

The previous prime is 53421461. The next prime is 53421493. The reversal of 53421485 is 58412435.

It can be written as a sum of positive squares in 4 ways, for example, as 4 + 53421481 = 2^2 + 7309^2 .

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 53421485 - 2¹⁴ = 53405101 is a prime.

It is a congruent 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, 410870 + ... + 410999.

It is an arithmetic number, because the mean of its divisors is an integer number (8629635).

Almost surely, 2^53421485 is an apocalyptic number.

It is an amenable number.

53421485 is a deficient number, since it is larger than the sum of its proper divisors (15615595).

53421485 is a wasteful number, since it uses less digits than its factorization.

53421485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821887.

The product of its digits is 19200, while the sum is 32.

The square root of 53421485 is about 7309.0002736352. Note that the first 3 decimals coincide. The cubic root of 53421485 is about 376.6216821349.

The spelling of 53421485 in words is "fifty-three million, four hundred twenty-one thousand, four hundred eighty-five".