2057212956 has 12 divisors (see below), whose sum is σ = 4800163592. Its totient is φ = 685737648.

The previous prime is 2057212951. The next prime is 2057212981. The reversal of 2057212956 is 6592127502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057212951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85717195 + ... + 85717218.

Almost surely, 2^2057212956 is an apocalyptic number.

It is an amenable number.

2057212956 is an abundant number, since it is smaller than the sum of its proper divisors (2742950636).

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

2057212956 is a wasteful number, since it uses less digits than its factorization.

2057212956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171434420 (or 171434418 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 2057212956 is about 45356.5095217875. The cubic root of 2057212956 is about 1271.8222453441.

The spelling of 2057212956 in words is "two billion, fifty-seven million, two hundred twelve thousand, nine hundred fifty-six".