2125455570 has 96 divisors (see below), whose sum is σ = 6329232000. Its totient is φ = 484773120.

The previous prime is 2125455499. The next prime is 2125455571. The reversal of 2125455570 is 755545212.

2125455570 is a `hidden beast` number, since 21 + 25 + 45 + 5 + 570 = 666.

It is a super-2 number, since 2×2125455570² = 9035122760088049800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2125455571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310990 + ... + 317750.

It is an arithmetic number, because the mean of its divisors is an integer number (65929500).

Almost surely, 2^2125455570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125455570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3164616000).

2125455570 is an abundant number, since it is smaller than the sum of its proper divisors (4203776430).

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

2125455570 is a wasteful number, since it uses less digits than its factorization.

2125455570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280 (or 7277 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The square root of 2125455570 is about 46102.6633720873. The cubic root of 2125455570 is about 1285.7326631765.

The spelling of 2125455570 in words is "two billion, one hundred twenty-five million, four hundred fifty-five thousand, five hundred seventy".