51266010257 has 16 divisors (see below), whose sum is σ = 63944111232. Its totient is φ = 39930011520.

The previous prime is 51266010209. The next prime is 51266010259. The reversal of 51266010257 is 75201066215.

It is not a de Polignac number, because 51266010257 - 2⁸ = 51266010001 is a prime.

It is a super-3 number, since 3×51266010257³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51266010259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31943 + ... + 321795.

It is an arithmetic number, because the mean of its divisors is an integer number (3996506952).

Almost surely, 2^51266010257 is an apocalyptic number.

It is an amenable number.

51266010257 is a deficient number, since it is larger than the sum of its proper divisors (12678100975).

51266010257 is a wasteful number, since it uses less digits than its factorization.

51266010257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292168.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 51266010257 in words is "fifty-one billion, two hundred sixty-six million, ten thousand, two hundred fifty-seven".