55451401 has 2 divisors, whose sum is σ = 55451402. Its totient is φ = 55451400.

The previous prime is 55451369. The next prime is 55451423. The reversal of 55451401 is 10415455.

It is a happy number.

55451401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 27573001 = 5280^2 + 5251^2 .

It is a cyclic number.

It is not a de Polignac number, because 55451401 - 2⁵ = 55451369 is a prime.

It is not a weakly prime, because it can be changed into another prime (55451441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27725700 + 27725701.

It is an arithmetic number, because the mean of its divisors is an integer number (27725701).

Almost surely, 2^55451401 is an apocalyptic number.

It is an amenable number.

55451401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55451401 is an equidigital number, since it uses as much as digits as its factorization.

55451401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 55451401 is about 7446.5697472058. The cubic root of 55451401 is about 381.3328106060.

Adding to 55451401 its reverse (10415455), we get a palindrome (65866856).

The spelling of 55451401 in words is "fifty-five million, four hundred fifty-one thousand, four hundred one".