55257770307 has 8 divisors (see below), whose sum is σ = 74884847440. Its totient is φ = 36234603360.

The previous prime is 55257770297. The next prime is 55257770311. The reversal of 55257770307 is 70307775255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55257770307 - 2⁴ = 55257770291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55257770317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150977332 + ... + 150977697.

It is an arithmetic number, because the mean of its divisors is an integer number (9360605930).

Almost surely, 2^55257770307 is an apocalyptic number.

55257770307 is a deficient number, since it is larger than the sum of its proper divisors (19627077133).

55257770307 is a wasteful number, since it uses less digits than its factorization.

55257770307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301955093.

The product of its (nonzero) digits is 1800750, while the sum is 48.

The spelling of 55257770307 in words is "fifty-five billion, two hundred fifty-seven million, seven hundred seventy thousand, three hundred seven".