55415401 has 2 divisors, whose sum is σ = 55415402. Its totient is φ = 55415400.

The previous prime is 55415377. The next prime is 55415411. The reversal of 55415401 is 10451455.

It is a happy number.

55415401 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., 54405376 + 1010025 = 7376^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 55415401 - 2¹⁵ = 55382633 is a prime.

It is not a weakly prime, because it can be changed into another prime (55415411) 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, 27707700 + 27707701.

It is an arithmetic number, because the mean of its divisors is an integer number (27707701).

Almost surely, 2^55415401 is an apocalyptic number.

It is an amenable number.

55415401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55415401 is an equidigital number, since it uses as much as digits as its factorization.

55415401 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 55415401 is about 7444.1521343938. The cubic root of 55415401 is about 381.2502701422.

Adding to 55415401 its reverse (10451455), we get a palindrome (65866856).

The spelling of 55415401 in words is "fifty-five million, four hundred fifteen thousand, four hundred one".