2051995515 has 32 divisors (see below), whose sum is σ = 3365314560. Its totient is φ = 1067318784.

The previous prime is 2051995483. The next prime is 2051995529. The reversal of 2051995515 is 5155991502.

It is not a de Polignac number, because 2051995515 - 2⁵ = 2051995483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103267 + ... + 121523.

It is an arithmetic number, because the mean of its divisors is an integer number (105166080).

Almost surely, 2^2051995515 is an apocalyptic number.

2051995515 is a deficient number, since it is larger than the sum of its proper divisors (1313319045).

2051995515 is a wasteful number, since it uses less digits than its factorization.

2051995515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18451.

The product of its (nonzero) digits is 101250, while the sum is 42.

The square root of 2051995515 is about 45298.9571072006. The cubic root of 2051995515 is about 1270.7461494635.

The spelling of 2051995515 in words is "two billion, fifty-one million, nine hundred ninety-five thousand, five hundred fifteen".