55554747 has 8 divisors (see below), whose sum is σ = 74806800. Its totient is φ = 36669600.

The previous prime is 55554743. The next prime is 55554757. The reversal of 55554747 is 74745555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55554747 - 2² = 55554743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55554699 and 55554708.

It is not an unprimeable number, because it can be changed into a prime (55554743) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 91372 + ... + 91977.

It is an arithmetic number, because the mean of its divisors is an integer number (9350850).

Almost surely, 2^55554747 is an apocalyptic number.

55554747 is a deficient number, since it is larger than the sum of its proper divisors (19252053).

55554747 is a wasteful number, since it uses less digits than its factorization.

55554747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183453.

The product of its digits is 490000, while the sum is 42.

The square root of 55554747 is about 7453.5056852464. The cubic root of 55554747 is about 381.5695630453.

The spelling of 55554747 in words is "fifty-five million, five hundred fifty-four thousand, seven hundred forty-seven".