53981590 has 32 divisors (see below), whose sum is σ = 105136416. Its totient is φ = 19837440.

The previous prime is 53981561. The next prime is 53981591. The reversal of 53981590 is 9518935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53981591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30469 + ... + 32191.

It is an arithmetic number, because the mean of its divisors is an integer number (3285513).

Almost surely, 2^53981590 is an apocalyptic number.

53981590 is a deficient number, since it is larger than the sum of its proper divisors (51154826).

53981590 is a wasteful number, since it uses less digits than its factorization.

53981590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 53981590 is about 7347.2164797289. The cubic root of 53981590 is about 377.9333561111.

The spelling of 53981590 in words is "fifty-three million, nine hundred eighty-one thousand, five hundred ninety".