53937729 has 24 divisors (see below), whose sum is σ = 80519400. Its totient is φ = 34774272.

The previous prime is 53937727. The next prime is 53937733. The reversal of 53937729 is 92773935.

It can be written as a sum of positive squares in 4 ways, for example, as 10575504 + 43362225 = 3252^2 + 6585^2 .

It is not a de Polignac number, because 53937729 - 2¹ = 53937727 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53937721) 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 23 ways as a sum of consecutive naturals, for example, 34047 + ... + 35595.

It is an arithmetic number, because the mean of its divisors is an integer number (3354975).

Almost surely, 2^53937729 is an apocalyptic number.

It is an amenable number.

53937729 is a deficient number, since it is larger than the sum of its proper divisors (26581671).

53937729 is a wasteful number, since it uses less digits than its factorization.

53937729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1678 counting only the distinct ones).

The product of its digits is 357210, while the sum is 45.

The square root of 53937729 is about 7344.2310012690. The cubic root of 53937729 is about 377.8309691891.

The spelling of 53937729 in words is "fifty-three million, nine hundred thirty-seven thousand, seven hundred twenty-nine".