55545089 has 2 divisors, whose sum is σ = 55545090. Its totient is φ = 55545088.

The previous prime is 55545071. The next prime is 55545107. The reversal of 55545089 is 98054555.

It is a balanced prime because it is at equal distance from previous prime (55545071) and next prime (55545107).

It can be written as a sum of positive squares in only one way, i.e., 31730689 + 23814400 = 5633^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 55545089 - 2²⁴ = 38767873 is a prime.

It is not a weakly prime, because it can be changed into another prime (55545289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27772544 + 27772545.

It is an arithmetic number, because the mean of its divisors is an integer number (27772545).

Almost surely, 2^55545089 is an apocalyptic number.

It is an amenable number.

55545089 is a deficient number, since it is larger than the sum of its proper divisors (1).

55545089 is an equidigital number, since it uses as much as digits as its factorization.

55545089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 41.

The square root of 55545089 is about 7452.8577740354. The cubic root of 55545089 is about 381.5474502490.

The spelling of 55545089 in words is "fifty-five million, five hundred forty-five thousand, eighty-nine".