55924289 has 2 divisors, whose sum is σ = 55924290. Its totient is φ = 55924288.

The previous prime is 55924243. The next prime is 55924301. The reversal of 55924289 is 98242955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 4443664 = 7175^2 + 2108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55924289 is a prime.

It is a super-2 number, since 2×55924289² = 6255052200311042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55924229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27962144 + 27962145.

It is an arithmetic number, because the mean of its divisors is an integer number (27962145).

Almost surely, 2^55924289 is an apocalyptic number.

It is an amenable number.

55924289 is a deficient number, since it is larger than the sum of its proper divisors (1).

55924289 is an equidigital number, since it uses as much as digits as its factorization.

55924289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 55924289 is about 7478.2544086170. The cubic root of 55924289 is about 382.4137422080.

The spelling of 55924289 in words is "fifty-five million, nine hundred twenty-four thousand, two hundred eighty-nine".