55746647 has 8 divisors (see below), whose sum is σ = 61417872. Its totient is φ = 50176000.

The previous prime is 55746631. The next prime is 55746659. The reversal of 55746647 is 74664755.

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 55746647 - 2⁴ = 55746631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55746598 and 55746607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55746697) 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, 23978 + ... + 26199.

It is an arithmetic number, because the mean of its divisors is an integer number (7677234).

Almost surely, 2^55746647 is an apocalyptic number.

55746647 is a deficient number, since it is larger than the sum of its proper divisors (5671225).

55746647 is a wasteful number, since it uses less digits than its factorization.

55746647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50289.

The product of its digits is 705600, while the sum is 44.

The square root of 55746647 is about 7466.3677246704. The cubic root of 55746647 is about 382.0084037331.

It can be divided in two parts, 5574 and 6647, that added together give a palindrome (12221).

The spelling of 55746647 in words is "fifty-five million, seven hundred forty-six thousand, six hundred forty-seven".