55825901 has 2 divisors, whose sum is σ = 55825902. Its totient is φ = 55825900.

The previous prime is 55825879. The next prime is 55825937. The reversal of 55825901 is 10952855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48930025 + 6895876 = 6995^2 + 2626^2 .

It is a cyclic number.

It is not a de Polignac number, because 55825901 - 2¹⁰ = 55824877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55825961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27912950 + 27912951.

It is an arithmetic number, because the mean of its divisors is an integer number (27912951).

Almost surely, 2^55825901 is an apocalyptic number.

It is an amenable number.

55825901 is a deficient number, since it is larger than the sum of its proper divisors (1).

55825901 is an equidigital number, since it uses as much as digits as its factorization.

55825901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 55825901 is about 7471.6732396432. The cubic root of 55825901 is about 382.1893494911.

The spelling of 55825901 in words is "fifty-five million, eight hundred twenty-five thousand, nine hundred one".