55731501 has 24 divisors (see below), whose sum is σ = 92426880. Its totient is φ = 31699296.

The previous prime is 55731449. The next prime is 55731523. The reversal of 55731501 is 10513755.

55731501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55731501 - 2⁶ = 55731437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55731701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12496 + ... + 16358.

It is an arithmetic number, because the mean of its divisors is an integer number (3851120).

Almost surely, 2^55731501 is an apocalyptic number.

It is an amenable number.

55731501 is a deficient number, since it is larger than the sum of its proper divisors (36695379).

55731501 is a wasteful number, since it uses less digits than its factorization.

55731501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 55731501 is about 7465.3533740875. The cubic root of 55731501 is about 381.9738042031.

The spelling of 55731501 in words is "fifty-five million, seven hundred thirty-one thousand, five hundred one".