51141751 has 4 divisors (see below), whose sum is σ = 51213600. Its totient is φ = 51069904.

The previous prime is 51141743. The next prime is 51141799. The reversal of 51141751 is 15714115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51141751 - 2³ = 51141743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51141721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34846 + ... + 36283.

It is an arithmetic number, because the mean of its divisors is an integer number (12803400).

Almost surely, 2^51141751 is an apocalyptic number.

51141751 is a deficient number, since it is larger than the sum of its proper divisors (71849).

51141751 is an equidigital number, since it uses as much as digits as its factorization.

51141751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71848.

The product of its digits is 700, while the sum is 25.

The square root of 51141751 is about 7151.3460970645. The cubic root of 51141751 is about 371.1862366353.

Adding to 51141751 its reverse (15714115), we get a palindrome (66855866).

The spelling of 51141751 in words is "fifty-one million, one hundred forty-one thousand, seven hundred fifty-one".