55049571819 has 36 divisors (see below), whose sum is σ = 92543258808. Its totient is φ = 31400814720.

The previous prime is 55049571793. The next prime is 55049571827. The reversal of 55049571819 is 91817594055.

It is a happy number.

55049571819 is a `hidden beast` number, since 5 + 5 + 0 + 495 + 71 + 81 + 9 = 666.

It is not a de Polignac number, because 55049571819 - 2¹² = 55049567723 is a prime.

It is a super-2 number, since 2×55049571819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55049571839) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1468269 + ... + 1505294.

It is an arithmetic number, because the mean of its divisors is an integer number (2570646078).

Almost surely, 2^55049571819 is an apocalyptic number.

55049571819 is a deficient number, since it is larger than the sum of its proper divisors (37493686989).

55049571819 is a wasteful number, since it uses less digits than its factorization.

55049571819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973608 (or 2973594 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 54.

The spelling of 55049571819 in words is "fifty-five billion, forty-nine million, five hundred seventy-one thousand, eight hundred nineteen".