55731502 has 4 divisors (see below), whose sum is σ = 83597256. Its totient is φ = 27865750.

The previous prime is 55731449. The next prime is 55731523. The reversal of 55731502 is 20513755.

55731502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13932874 + ... + 13932877.

It is an arithmetic number, because the mean of its divisors is an integer number (20899314).

Almost surely, 2^55731502 is an apocalyptic number.

55731502 is a deficient number, since it is larger than the sum of its proper divisors (27865754).

55731502 is a wasteful number, since it uses less digits than its factorization.

55731502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27865753.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55731502 is about 7465.3534410636. The cubic root of 55731502 is about 381.9738064877.

The spelling of 55731502 in words is "fifty-five million, seven hundred thirty-one thousand, five hundred two".