2055147785 has 8 divisors (see below), whose sum is σ = 2551218120. Its totient is φ = 1587424384.

The previous prime is 2055147763. The next prime is 2055147793. The reversal of 2055147785 is 5877415502.

It can be written as a sum of positive squares in 4 ways, for example, as 648822784 + 1406325001 = 25472^2 + 37501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2055147785 - 2⁸ = 2055147529 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7086572 + ... + 7086861.

It is an arithmetic number, because the mean of its divisors is an integer number (318902265).

Almost surely, 2^2055147785 is an apocalyptic number.

It is an amenable number.

2055147785 is a deficient number, since it is larger than the sum of its proper divisors (496070335).

2055147785 is a wasteful number, since it uses less digits than its factorization.

2055147785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14173467.

The product of its (nonzero) digits is 392000, while the sum is 44.

The square root of 2055147785 is about 45333.7378229504. The cubic root of 2055147785 is about 1271.3965221510.

The spelling of 2055147785 in words is "two billion, fifty-five million, one hundred forty-seven thousand, seven hundred eighty-five".