55610780357 has 12 divisors (see below), whose sum is σ = 61677184608. Its totient is φ = 49726443600.

The previous prime is 55610780353. The next prime is 55610780359. The reversal of 55610780357 is 75308701655.

55610780357 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 55610780357 - 2² = 55610780353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55610780353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638393 + ... + 720254.

It is an arithmetic number, because the mean of its divisors is an integer number (5139765384).

Almost surely, 2^55610780357 is an apocalyptic number.

It is an amenable number.

55610780357 is a deficient number, since it is larger than the sum of its proper divisors (6066404251).

55610780357 is a wasteful number, since it uses less digits than its factorization.

55610780357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358780 (or 1358719 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 55610780357 in words is "fifty-five billion, six hundred ten million, seven hundred eighty thousand, three hundred fifty-seven".