55731022 has 8 divisors (see below), whose sum is σ = 83703816. Its totient is φ = 27829752.

The previous prime is 55731019. The next prime is 55731041. The reversal of 55731022 is 22013755.

55731022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct 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 in 3 ways as a sum of consecutive naturals, for example, 15888 + ... + 19075.

It is an arithmetic number, because the mean of its divisors is an integer number (10462977).

Almost surely, 2^55731022 is an apocalyptic number.

55731022 is a deficient number, since it is larger than the sum of its proper divisors (27972794).

55731022 is a wasteful number, since it uses less digits than its factorization.

55731022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35762.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55731022 is about 7465.3212924830. The cubic root of 55731022 is about 381.9727098730.

Adding to 55731022 its reverse (22013755), we get a palindrome (77744777).

The spelling of 55731022 in words is "fifty-five million, seven hundred thirty-one thousand, twenty-two".