55526897 has 4 divisors (see below), whose sum is σ = 56437236. Its totient is φ = 54616560.

The previous prime is 55526893. The next prime is 55526923. The reversal of 55526897 is 79862555.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4490161 + 51036736 = 2119^2 + 7144^2 .

It is a cyclic number.

It is not a de Polignac number, because 55526897 - 2² = 55526893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55526893) 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, 455078 + ... + 455199.

It is an arithmetic number, because the mean of its divisors is an integer number (14109309).

Almost surely, 2^55526897 is an apocalyptic number.

It is an amenable number.

55526897 is a deficient number, since it is larger than the sum of its proper divisors (910339).

55526897 is an equidigital number, since it uses as much as digits as its factorization.

55526897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910338.

The product of its digits is 756000, while the sum is 47.

The square root of 55526897 is about 7451.6372026555. The cubic root of 55526897 is about 381.5057911858.

The spelling of 55526897 in words is "fifty-five million, five hundred twenty-six thousand, eight hundred ninety-seven".