55340995290 has 128 divisors (see below), whose sum is σ = 158498242560. Its totient is φ = 12091292928.

The previous prime is 55340995279. The next prime is 55340995331. The reversal of 55340995290 is 9259904355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9797247 + ... + 9802893.

It is an arithmetic number, because the mean of its divisors is an integer number (1238267520).

Almost surely, 2^55340995290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55340995290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79249121280).

55340995290 is an abundant number, since it is smaller than the sum of its proper divisors (103157247270).

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

55340995290 is a wasteful number, since it uses less digits than its factorization.

55340995290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716.

The product of its (nonzero) digits is 2187000, while the sum is 51.

The spelling of 55340995290 in words is "fifty-five billion, three hundred forty million, nine hundred ninety-five thousand, two hundred ninety".