55447679 has 8 divisors (see below), whose sum is σ = 63487008. Its totient is φ = 47437920.

The previous prime is 55447673. The next prime is 55447723. The reversal of 55447679 is 97674455.

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 55447679 - 2¹⁶ = 55382143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55447673) 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, 3212 + ... + 11009.

It is an arithmetic number, because the mean of its divisors is an integer number (7935876).

Almost surely, 2^55447679 is an apocalyptic number.

55447679 is a deficient number, since it is larger than the sum of its proper divisors (8039329).

55447679 is a wasteful number, since it uses less digits than its factorization.

55447679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14785.

The product of its digits is 1058400, while the sum is 47.

The square root of 55447679 is about 7446.3198292848. The cubic root of 55447679 is about 381.3242784953.

The spelling of 55447679 in words is "fifty-five million, four hundred forty-seven thousand, six hundred seventy-nine".