55747610919 has 384 divisors, whose sum is σ = 117915033600. Its totient is φ = 24455208960.

The previous prime is 55747610869. The next prime is 55747610999. The reversal of 55747610919 is 91901674755.

55747610919 is a `hidden beast` number, since 5 + 5 + 7 + 4 + 7 + 610 + 9 + 19 = 666.

55747610919 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 55747610919 - 2⁹ = 55747610407 is a prime.

It is a super-2 number, since 2×55747610919² (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 (55747610999) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 705665922 + ... + 705666000.

It is an arithmetic number, because the mean of its divisors is an integer number (307070400).

Almost surely, 2^55747610919 is an apocalyptic number.

55747610919 is an abundant number, since it is smaller than the sum of its proper divisors (62167422681).

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

55747610919 is a wasteful number, since it uses less digits than its factorization.

55747610919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 54.

It can be divided in two parts, 55747 and 610919, that added together give a palindrome (666666).

The spelling of 55747610919 in words is "fifty-five billion, seven hundred forty-seven million, six hundred ten thousand, nine hundred nineteen".