53487620 has 12 divisors (see below), whose sum is σ = 112324044. Its totient is φ = 21395040.

The previous prime is 53487589. The next prime is 53487647. The reversal of 53487620 is 2678435.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41886784 + 11600836 = 6472^2 + 3406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337171 + ... + 1337210.

It is an arithmetic number, because the mean of its divisors is an integer number (9360337).

Almost surely, 2^53487620 is an apocalyptic number.

It is an amenable number.

53487620 is an abundant number, since it is smaller than the sum of its proper divisors (58836424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53487620 is a wasteful number, since it uses less digits than its factorization.

53487620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674390 (or 2674388 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 53487620 is about 7313.5230908229. The cubic root of 53487620 is about 376.7770353820. Note that the first 3 decimals are identical.

The spelling of 53487620 in words is "fifty-three million, four hundred eighty-seven thousand, six hundred twenty".