51450011 has 6 divisors (see below), whose sum is σ = 53784780. Its totient is φ = 49212548.

The previous prime is 51449977. The next prime is 51450013. The reversal of 51450011 is 11005415.

It is a de Polignac number, because none of the positive numbers 2^k-51450011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51450013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48101 + ... + 49158.

It is an arithmetic number, because the mean of its divisors is an integer number (8964130).

Almost surely, 2^51450011 is an apocalyptic number.

51450011 is a deficient number, since it is larger than the sum of its proper divisors (2334769).

51450011 is an equidigital number, since it uses as much as digits as its factorization.

51450011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97305 (or 97282 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 51450011 is about 7172.8663029503. The cubic root of 51450011 is about 371.9305257201.

Adding to 51450011 its reverse (11005415), we get a palindrome (62455426).

The spelling of 51450011 in words is "fifty-one million, four hundred fifty thousand, eleven".