55645401409 has 16 divisors (see below), whose sum is σ = 61125507072. Its totient is φ = 50346430848.

The previous prime is 55645401407. The next prime is 55645401437. The reversal of 55645401409 is 90410454655.

55645401409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55645401409 - 2¹ = 55645401407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55645401407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66004 + ... + 340069.

It is an arithmetic number, because the mean of its divisors is an integer number (3820344192).

Almost surely, 2^55645401409 is an apocalyptic number.

It is an amenable number.

55645401409 is a deficient number, since it is larger than the sum of its proper divisors (5480105663).

55645401409 is a wasteful number, since it uses less digits than its factorization.

55645401409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406296.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 55645401409 in words is "fifty-five billion, six hundred forty-five million, four hundred one thousand, four hundred nine".