55247659 has 4 divisors (see below), whose sum is σ = 56184120. Its totient is φ = 54311200.

The previous prime is 55247657. The next prime is 55247663. The reversal of 55247659 is 95674255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55247659 - 2¹ = 55247657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55247651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468142 + ... + 468259.

It is an arithmetic number, because the mean of its divisors is an integer number (14046030).

Almost surely, 2^55247659 is an apocalyptic number.

55247659 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55247659 is a deficient number, since it is larger than the sum of its proper divisors (936461).

55247659 is an equidigital number, since it uses as much as digits as its factorization.

55247659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936460.

The product of its digits is 378000, while the sum is 43.

The square root of 55247659 is about 7432.8768992901. The cubic root of 55247659 is about 380.8652007844.

The spelling of 55247659 in words is "fifty-five million, two hundred forty-seven thousand, six hundred fifty-nine".