51140351 has 2 divisors, whose sum is σ = 51140352. Its totient is φ = 51140350.

The previous prime is 51140347. The next prime is 51140393. The reversal of 51140351 is 15304115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51140351 - 2² = 51140347 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51140251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25570175 + 25570176.

It is an arithmetic number, because the mean of its divisors is an integer number (25570176).

Almost surely, 2^51140351 is an apocalyptic number.

51140351 is a deficient number, since it is larger than the sum of its proper divisors (1).

51140351 is an equidigital number, since it uses as much as digits as its factorization.

51140351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 51140351 is about 7151.2482127248. The cubic root of 51140351 is about 371.1828495431.

Adding to 51140351 its reverse (15304115), we get a palindrome (66444466).

The spelling of 51140351 in words is "fifty-one million, one hundred forty thousand, three hundred fifty-one".