2055660825 has 48 divisors (see below), whose sum is σ = 3788061120. Its totient is φ = 977541120.

The previous prime is 2055660821. The next prime is 2055660851. The reversal of 2055660825 is 5280665502.

It is a happy number.

It is not a de Polignac number, because 2055660825 - 2² = 2055660821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2055660821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18204 + ... + 66653.

It is an arithmetic number, because the mean of its divisors is an integer number (78917940).

Almost surely, 2^2055660825 is an apocalyptic number.

2055660825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2055660825 is a deficient number, since it is larger than the sum of its proper divisors (1732400295).

2055660825 is a wasteful number, since it uses less digits than its factorization.

2055660825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84906 (or 84901 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 2055660825 is about 45339.3959487773. The cubic root of 2055660825 is about 1271.5023090286.

The spelling of 2055660825 in words is "two billion, fifty-five million, six hundred sixty thousand, eight hundred twenty-five".