2055021301240 has 32 divisors (see below), whose sum is σ = 4692809843280. Its totient is φ = 809739735552.

The previous prime is 2055021301153. The next prime is 2055021301261. The reversal of 2055021301240 is 421031205502.

It is a super-2 number, since 2×2055021301240² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383396817 + ... + 383402176.

Almost surely, 2^{2055021301240} is an apocalyptic number.

2055021301240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055021301240 is an abundant number, since it is smaller than the sum of its proper divisors (2637788542040).

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

2055021301240 is a wasteful number, since it uses less digits than its factorization.

2055021301240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766799071 (or 766799067 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 2055021301240 its reverse (421031205502), we get a palindrome (2476052506742).

The spelling of 2055021301240 in words is "two trillion, fifty-five billion, twenty-one million, three hundred one thousand, two hundred forty".