2051205512 has 16 divisors (see below), whose sum is σ = 3846520860. Its totient is φ = 1025466624.

The previous prime is 2051205509. The next prime is 2051205521. The reversal of 2051205512 is 2155021502.

It can be written as a sum of positive squares in 2 ways, for example, as 1700242756 + 350962756 = 41234^2 + 18734^2 .

It is a super-3 number, since 3×2051205512³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78668 + ... + 101444.

Almost surely, 2^2051205512 is an apocalyptic number.

It is an amenable number.

2051205512 is a deficient number, since it is larger than the sum of its proper divisors (1795315348).

2051205512 is a wasteful number, since it uses less digits than its factorization.

2051205512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34040 (or 34036 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2051205512 is about 45290.2363871067. The cubic root of 2051205512 is about 1270.5830525949.

The spelling of 2051205512 in words is "two billion, fifty-one million, two hundred five thousand, five hundred twelve".