55469009 has 2 divisors, whose sum is σ = 55469010. Its totient is φ = 55469008.

The previous prime is 55469003. The next prime is 55469017. The reversal of 55469009 is 90096455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49392784 + 6076225 = 7028^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 55469009 - 2¹⁶ = 55403473 is a prime.

It is not a weakly prime, because it can be changed into another prime (55469003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27734504 + 27734505.

It is an arithmetic number, because the mean of its divisors is an integer number (27734505).

Almost surely, 2^55469009 is an apocalyptic number.

It is an amenable number.

55469009 is a deficient number, since it is larger than the sum of its proper divisors (1).

55469009 is an equidigital number, since it uses as much as digits as its factorization.

55469009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 55469009 is about 7447.7519427006. The cubic root of 55469009 is about 381.3731690546.

The spelling of 55469009 in words is "fifty-five million, four hundred sixty-nine thousand, nine".