2054206251 has 10 divisors (see below), whose sum is σ = 3068629212. Its totient is φ = 1369470780.

The previous prime is 2054206249. The next prime is 2054206283. The reversal of 2054206251 is 1526024502.

2054206251 is a `hidden beast` number, since 205 + 4 + 206 + 251 = 666.

It is not a de Polignac number, because 2054206251 - 2¹ = 2054206249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2054206211) 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 9 ways as a sum of consecutive naturals, for example, 12680205 + ... + 12680366.

Almost surely, 2^2054206251 is an apocalyptic number.

2054206251 is a deficient number, since it is larger than the sum of its proper divisors (1014422961).

2054206251 is an equidigital number, since it uses as much as digits as its factorization.

2054206251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25360583 (or 25360574 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2054206251 is about 45323.3521597862. The cubic root of 2054206251 is about 1271.2023356447.

The spelling of 2054206251 in words is "two billion, fifty-four million, two hundred six thousand, two hundred fifty-one".