55645226501 has 2 divisors, whose sum is σ = 55645226502. Its totient is φ = 55645226500.

The previous prime is 55645226491. The next prime is 55645226543. The reversal of 55645226501 is 10562254655.

55645226501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34204653025 + 21440573476 = 184945^2 + 146426^2 .

It is a cyclic number.

It is not a de Polignac number, because 55645226501 - 2⁶ = 55645226437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55645226101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27822613250 + 27822613251.

It is an arithmetic number, because the mean of its divisors is an integer number (27822613251).

Almost surely, 2^55645226501 is an apocalyptic number.

It is an amenable number.

55645226501 is a deficient number, since it is larger than the sum of its proper divisors (1).

55645226501 is an equidigital number, since it uses as much as digits as its factorization.

55645226501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 55645226501 in words is "fifty-five billion, six hundred forty-five million, two hundred twenty-six thousand, five hundred one".