55780530944 has 36 divisors (see below), whose sum is σ = 113444011296. Its totient is φ = 27364027392.

The previous prime is 55780530943. The next prime is 55780531033. The reversal of 55780530944 is 44903508755.

It is a happy number.

55780530944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55780530944² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55780530892 and 55780530901.

It is not an unprimeable number, because it can be changed into a prime (55780530943) 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, 2042024 + ... + 2069159.

It is an arithmetic number, because the mean of its divisors is an integer number (3151222536).

Almost surely, 2^55780530944 is an apocalyptic number.

It is an amenable number.

55780530944 is an abundant number, since it is smaller than the sum of its proper divisors (57663480352).

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

55780530944 is an equidigital number, since it uses as much as digits as its factorization.

55780530944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111252 (or 4111238 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 55780530944 in words is "fifty-five billion, seven hundred eighty million, five hundred thirty thousand, nine hundred forty-four".