55243148290 has 32 divisors (see below), whose sum is σ = 108530331840. Its totient is φ = 20078625600.

The previous prime is 55243148239. The next prime is 55243148329. The reversal of 55243148290 is 9284134255.

55243148290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106225 + ... + 348955.

It is an arithmetic number, because the mean of its divisors is an integer number (3391572870).

Almost surely, 2^55243148290 is an apocalyptic number.

55243148290 is a deficient number, since it is larger than the sum of its proper divisors (53287183550).

55243148290 is a wasteful number, since it uses less digits than its factorization.

55243148290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244818.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 55243148290 in words is "fifty-five billion, two hundred forty-three million, one hundred forty-eight thousand, two hundred ninety".