55417847 has 8 divisors (see below), whose sum is σ = 56297472. Its totient is φ = 54545400.

The previous prime is 55417837. The next prime is 55417849. The reversal of 55417847 is 74871455.

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 55417847 - 2⁶ = 55417783 is a prime.

It is a super-2 number, since 2×55417847² = 6142275532230818, 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 (55417849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14972 + ... + 18302.

It is an arithmetic number, because the mean of its divisors is an integer number (7037184).

Almost surely, 2^55417847 is an apocalyptic number.

55417847 is a deficient number, since it is larger than the sum of its proper divisors (879625).

55417847 is a wasteful number, since it uses less digits than its factorization.

55417847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589.

The product of its digits is 156800, while the sum is 41.

The square root of 55417847 is about 7444.3164226140. The cubic root of 55417847 is about 381.2558794399.

The spelling of 55417847 in words is "fifty-five million, four hundred seventeen thousand, eight hundred forty-seven".