2051416251 has 24 divisors (see below), whose sum is σ = 3064173840. Its totient is φ = 1321759296.

The previous prime is 2051416229. The next prime is 2051416259. The reversal of 2051416251 is 1526141502.

2051416251 is a `hidden beast` number, since 20 + 5 + 14 + 1 + 625 + 1 = 666.

It is not a de Polignac number, because 2051416251 - 2⁹ = 2051415739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051416259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136 + ... + 64053.

It is an arithmetic number, because the mean of its divisors is an integer number (127673910).

Almost surely, 2^2051416251 is an apocalyptic number.

2051416251 is a deficient number, since it is larger than the sum of its proper divisors (1012757589).

2051416251 is a wasteful number, since it uses less digits than its factorization.

2051416251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64315 (or 64312 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2051416251 is about 45292.5628663250. The cubic root of 2051416251 is about 1270.6265639563.

Adding to 2051416251 its reverse (1526141502), we get a palindrome (3577557753).

The spelling of 2051416251 in words is "two billion, fifty-one million, four hundred sixteen thousand, two hundred fifty-one".