55645397448 has 16 divisors (see below), whose sum is σ = 139113493680. Its totient is φ = 18548465808.

The previous prime is 55645397447. The next prime is 55645397567. The reversal of 55645397448 is 84479354655.

It is a happy number.

55645397448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55645397391 and 55645397400.

It is not an unprimeable number, because it can be changed into a prime (55645397447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159279090 + ... + 1159279137.

It is an arithmetic number, because the mean of its divisors is an integer number (8694593355).

Almost surely, 2^55645397448 is an apocalyptic number.

It is an amenable number.

55645397448 is an abundant number, since it is smaller than the sum of its proper divisors (83468096232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55645397448 is a wasteful number, since it uses less digits than its factorization.

55645397448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318558236 (or 2318558232 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 60.

The spelling of 55645397448 in words is "fifty-five billion, six hundred forty-five million, three hundred ninety-seven thousand, four hundred forty-eight".