55847381 has 8 divisors (see below), whose sum is σ = 59146944. Its totient is φ = 52620480.

The previous prime is 55847353. The next prime is 55847383. The reversal of 55847381 is 18374855.

55847381 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 cyclic number.

It is not a de Polignac number, because 55847381 - 2¹⁸ = 55585237 is a prime.

It is a super-2 number, since 2×55847381² = 6237859929118322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55847383) 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 7 ways as a sum of consecutive naturals, for example, 16580 + ... + 19661.

It is an arithmetic number, because the mean of its divisors is an integer number (7393368).

Almost surely, 2^55847381 is an apocalyptic number.

It is an amenable number.

55847381 is a deficient number, since it is larger than the sum of its proper divisors (3299563).

55847381 is a wasteful number, since it uses less digits than its factorization.

55847381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36331.

The product of its digits is 134400, while the sum is 41.

The square root of 55847381 is about 7473.1105304284. The cubic root of 55847381 is about 382.2383612365.

The spelling of 55847381 in words is "fifty-five million, eight hundred forty-seven thousand, three hundred eighty-one".