55847031 has 4 divisors (see below), whose sum is σ = 74462712. Its totient is φ = 37231352.

The previous prime is 55847021. The next prime is 55847039. The reversal of 55847031 is 13074855.

55847031 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 cyclic number.

It is not a de Polignac number, because 55847031 - 2¹⁸ = 55584887 is a prime.

It is a super-2 number, since 2×55847031² = 6237781743029922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55846983 and 55847001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55847039) 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, 9307836 + ... + 9307841.

It is an arithmetic number, because the mean of its divisors is an integer number (18615678).

Almost surely, 2^55847031 is an apocalyptic number.

55847031 is a deficient number, since it is larger than the sum of its proper divisors (18615681).

55847031 is a wasteful number, since it uses less digits than its factorization.

55847031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18615680.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 55847031 is about 7473.0871131013. The cubic root of 55847031 is about 382.2375627287.

The spelling of 55847031 in words is "fifty-five million, eight hundred forty-seven thousand, thirty-one".