55771403744 has 48 divisors (see below), whose sum is σ = 127074124800. Its totient is φ = 23599465344.

The previous prime is 55771403729. The next prime is 55771403749. The reversal of 55771403744 is 44730417755.

55771403744 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 2×55771403744² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55771403749) 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, 1558124 + ... + 1593515.

It is an arithmetic number, because the mean of its divisors is an integer number (2647377600).

Almost surely, 2^55771403744 is an apocalyptic number.

It is an amenable number.

55771403744 is an abundant number, since it is smaller than the sum of its proper divisors (71302721056).

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

55771403744 is a wasteful number, since it uses less digits than its factorization.

55771403744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151735 (or 3151727 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 47.

The spelling of 55771403744 in words is "fifty-five billion, seven hundred seventy-one million, four hundred three thousand, seven hundred forty-four".