55445375457 has 24 divisors (see below), whose sum is σ = 82365797696. Its totient is φ = 35914941216.

The previous prime is 55445375417. The next prime is 55445375459. The reversal of 55445375457 is 75457354455.

It is a happy number.

55445375457 is a `hidden beast` number, since 5 + 5 + 4 + 4 + 537 + 54 + 57 = 666.

55445375457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55445375457 - 2⁷ = 55445375329 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55445375459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127578 + ... + 356604.

Almost surely, 2^55445375457 is an apocalyptic number.

It is an amenable number.

55445375457 is a deficient number, since it is larger than the sum of its proper divisors (26920422239).

55445375457 is a wasteful number, since it uses less digits than its factorization.

55445375457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229797 (or 229794 counting only the distinct ones).

The product of its digits is 29400000, while the sum is 54.

The spelling of 55445375457 in words is "fifty-five billion, four hundred forty-five million, three hundred seventy-five thousand, four hundred fifty-seven".