55234731 has 4 divisors (see below), whose sum is σ = 73646312. Its totient is φ = 36823152.

The previous prime is 55234727. The next prime is 55234741. The reversal of 55234731 is 13743255.

55234731 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 not a de Polignac number, because 55234731 - 2² = 55234727 is a prime.

It is a super-2 number, since 2×55234731² = 6101751017284722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55234721) 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 3 ways as a sum of consecutive naturals, for example, 9205786 + ... + 9205791.

It is an arithmetic number, because the mean of its divisors is an integer number (18411578).

Almost surely, 2^55234731 is an apocalyptic number.

55234731 is a deficient number, since it is larger than the sum of its proper divisors (18411581).

55234731 is a wasteful number, since it uses less digits than its factorization.

55234731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18411580.

The product of its digits is 12600, while the sum is 30.

The square root of 55234731 is about 7432.0071985972. The cubic root of 55234731 is about 380.8354908714.

Adding to 55234731 its reverse (13743255), we get a palindrome (68977986).

The spelling of 55234731 in words is "fifty-five million, two hundred thirty-four thousand, seven hundred thirty-one".