31304055 has 16 divisors (see below), whose sum is σ = 53033184. Its totient is φ = 15713280.

The previous prime is 31304029. The next prime is 31304107. The reversal of 31304055 is 55040313.

It is not a de Polignac number, because 31304055 - 2¹³ = 31295863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61126 + ... + 61635.

It is an arithmetic number, because the mean of its divisors is an integer number (3314574).

Almost surely, 2^31304055 is an apocalyptic number.

31304055 is a deficient number, since it is larger than the sum of its proper divisors (21729129).

31304055 is a wasteful number, since it uses less digits than its factorization.

31304055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122786.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 31304055 is about 5595.0026809645. The cubic root of 31304055 is about 315.1617712780.

Adding to 31304055 its reverse (55040313), we get a palindrome (86344368).

The spelling of 31304055 in words is "thirty-one million, three hundred four thousand, fifty-five".