55290259 has 2 divisors, whose sum is σ = 55290260. Its totient is φ = 55290258.

The previous prime is 55290241. The next prime is 55290317. The reversal of 55290259 is 95209255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55290259 - 2¹⁷ = 55159187 is a prime.

It is not a weakly prime, because it can be changed into another prime (55297259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27645129 + 27645130.

It is an arithmetic number, because the mean of its divisors is an integer number (27645130).

Almost surely, 2^55290259 is an apocalyptic number.

55290259 is a deficient number, since it is larger than the sum of its proper divisors (1).

55290259 is an equidigital number, since it uses as much as digits as its factorization.

55290259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 55290259 is about 7435.7419939102. The cubic root of 55290259 is about 380.9630673091.

The spelling of 55290259 in words is "fifty-five million, two hundred ninety thousand, two hundred fifty-nine".