55504297 has 2 divisors, whose sum is σ = 55504298. Its totient is φ = 55504296.

The previous prime is 55504279. The next prime is 55504343. The reversal of 55504297 is 79240555.

Together with previous prime (55504279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53816896 + 1687401 = 7336^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 55504297 - 2¹⁵ = 55471529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55504277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752148 + 27752149.

It is an arithmetic number, because the mean of its divisors is an integer number (27752149).

Almost surely, 2^55504297 is an apocalyptic number.

It is an amenable number.

55504297 is a deficient number, since it is larger than the sum of its proper divisors (1).

55504297 is an equidigital number, since it uses as much as digits as its factorization.

55504297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 55504297 is about 7450.1206030507. The cubic root of 55504297 is about 381.4540252767.

The spelling of 55504297 in words is "fifty-five million, five hundred four thousand, two hundred ninety-seven".