55086401 has 2 divisors, whose sum is σ = 55086402. Its totient is φ = 55086400.

The previous prime is 55086391. The next prime is 55086407. The reversal of 55086401 is 10468055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 2146225 = 7276^2 + 1465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55086401 is a prime.

It is not a weakly prime, because it can be changed into another prime (55086407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27543200 + 27543201.

It is an arithmetic number, because the mean of its divisors is an integer number (27543201).

Almost surely, 2^55086401 is an apocalyptic number.

It is an amenable number.

55086401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55086401 is an equidigital number, since it uses as much as digits as its factorization.

55086401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 55086401 is about 7422.0213553991. The cubic root of 55086401 is about 380.4942806141.

The spelling of 55086401 in words is "fifty-five million, eighty-six thousand, four hundred one".