2051455545 has 16 divisors (see below), whose sum is σ = 3647032320. Its totient is φ = 1094109552.

The previous prime is 2051455543. The next prime is 2051455561. The reversal of 2051455545 is 5455541502.

2051455545 is a `hidden beast` number, since 20 + 51 + 45 + 5 + 545 = 666.

It is not a de Polignac number, because 2051455545 - 2¹ = 2051455543 is a prime.

It is a super-2 number, since 2×2051455545² = 8416939706222494050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2051455543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7597849 + ... + 7598118.

It is an arithmetic number, because the mean of its divisors is an integer number (227939520).

Almost surely, 2^2051455545 is an apocalyptic number.

It is an amenable number.

2051455545 is a deficient number, since it is larger than the sum of its proper divisors (1595576775).

2051455545 is a wasteful number, since it uses less digits than its factorization.

2051455545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15195981 (or 15195975 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The square root of 2051455545 is about 45292.9966440729. The cubic root of 2051455545 is about 1270.6346766737.

The spelling of 2051455545 in words is "two billion, fifty-one million, four hundred fifty-five thousand, five hundred forty-five".