55247759144 has 32 divisors (see below), whose sum is σ = 106043541120. Its totient is φ = 26970026496.

The previous prime is 55247759141. The next prime is 55247759153. The reversal of 55247759144 is 44195774255.

55247759144 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 2×55247759144² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55247759141) 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, 808952 + ... + 874584.

It is an arithmetic number, because the mean of its divisors is an integer number (3313860660).

Almost surely, 2^55247759144 is an apocalyptic number.

It is an amenable number.

55247759144 is a deficient number, since it is larger than the sum of its proper divisors (50795781976).

55247759144 is a wasteful number, since it uses less digits than its factorization.

55247759144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68129 (or 68125 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 53.

The spelling of 55247759144 in words is "fifty-five billion, two hundred forty-seven million, seven hundred fifty-nine thousand, one hundred forty-four".